Danny Yoon is a private investigator for Anderson/Vaughan Investigations.


Following AliceEdit

In 2009, after he was arrested for murder, Ethan Ward hired Danny to follow Alice to make sure she wasn't saying anything to the cops. Alice figured out someone was following her and confronted him. When she learned what Ethan was doing, she paid Danny to keep her secrets.[3]

Art HeistEdit

AVI was hired by Singer Museum to protect a painting by Maria Kreyn from an art thief, Mario Visconti. The team attended the gallery opening, where Danny posed as a waiter, offering champagne to attendees. After Mario stole the painting as expected, Danny stopped him as he left, allowing Alice to take him down so he could be arrested.[4]

Mr. XEdit

AVI was being taunted by a con artist they called Mr. X, who was targeting their clients. Each time he was ready to pull a con, he sent them a letter asking if they were ready to play. They'd spent nine months trying to track him down and in that time, he'd stolen $5 million from two of their biggest clients. His MO was finding a discontent employee within the company and get that employee to copy confidential files, which were then traded for a briefcase full of cash. They believed the next target was Patrick Lewis, an account manager. On the day the exchange was expected to take place, the team staked out the place where Patrick ate his lunch every day. However, Mr. X sufficiently distracted them and was able to take the flash drive and disappear undetected. They were able to catch Patrick Lewis and arrest him, but Mr. X was long gone.

After their system was hacked, they re-encrypted their data and were surprised that Mr. X hadn't touched anything. Now knowing that Mr. X was the man she'd known as Christopher, Alice figured out he was going to use the list of guests vetted by AVI for Seth Hamilton's party, at which he would announce a new technology that would make billions. He impersonated a guest on the list who wasn't able to attend and went to the party himself. Because they'd discovered his plan, they were able to put a program on the flash drive that Ben took from Seth and use it to empty all of the con artists' accounts, recovering Alice's lost money and leaving Margot and Ben with nothing.[5]

Jeffrey BloomEdit

AVI was hired by Jeffrey Bloom and his wife after he was acquitted of murdering his first wife. They were being hounded by people who believed he was guilty and thought that finding the real killer was the only way to get people off their backs. The team started a new investigation, looking for the real killer. After finding Edith's missing jewels at her son, Payton's, hangout, Alice believed he was the killer. However, after seeing sand from the beach on Jeffrey's shoes, she figured out he was the real killer after all. Shortly after that, Jeffrey's new wife killed him by pushing him down the stairs after she, too, figured out what he had done.[6]

Multiple Sclerosis TrialEdit

Valerie's ex-husband, Gordon, came to AVI looking for help. His sister, Susan, had been diagnosed with multiple sclerosis and had entered a clinical trial. When the trial left her and other patients temporarily blind and paralyzed, she asked for help to get enough evidence together for a class action lawsuit against the company that made the medicine. Sophie and Danny attended a lecture the doctor who developed the drug was giving, where Sophie hacked into his computer to get the raw data. Unfortunately, the raw data was the same as the published data, leading them to believe someone had sabotaged the drug. Alice went undercover as a trial patient in order to get access to the drug. Alice was unable to find and steal the drug ahead of time, so Cathy Green started her IV. Alice pinched off the tubing and pulled out the IV. The bag came back clean on their tests, but Alice still experienced the symptoms. Because of that, they were able to figure out that it was the juice that was poisoning patients, not the medicine. Richard Watkins had tanked his own trial so he could start over, because the drug wasn't working for his wife. This gave Susan and the other patients the case they needed.[7]

Search for Gwen EricssonEdit

When Phillip Thompson and Marie Sherwood came into AVI, they asked them to help in the search for Gwen Ericsson, a programmer who had disappeared along with a technology that had the potential to be used as a weapon. They were worried she'd been kidnapped by terrorists that wanted to use it maliciously. AVI started the search for Gwen. On a hiking trail, they found a dead body that matched Gwen's description. They then found the laptop. They retrieved it, but as they left, they were rammed by a car. The driver got out and attempted to take the laptop. Alice was shocked to find that it was Gwen, alive after all. Gwen pleaded with them not to give the laptop back to Phillip, saying he was selling it to terrorists. She'd found a listing for it on a website dedicated to illicit weapons sales. They discovered this to be true and set up a fake sale. Gwen was shocked to learn that Marie was also in on it. Marie and Phillip were arrested and Alice and Valerie set up a new identity for Gwen so she could build a new life.[8]

Hunting Benjamin JonesEdit

After Valerie learned that Alice was working with Dao to take down Ben, Danny told Alice he'd known all along what she'd been doing.[9]

William EtheridgeEdit

AVI took the case of William Etheridge, who believed his wife, Renée Etheridge, was cheating on him. They'd previously worked with Renée, so they set up a meeting with her, where she said things were better than ever. They followed her to her next meeting and took pictures of her with the man she was allegedly having an affair with. Once they identified him as Tony Ellis, they hacked him in order to get him to think he needed a new security company. He met with them, but revealed he knew what had happened. He threatened them. They used a microdot planted on him to track his movement, which gave them something to hold over him to keep him from revealing that William had once slept with a student his first year as a teacher.[10]

Nia BrooksEdit

Shawn came to AVI for help for his friend, Nia Brooks, one of the first female Army Rangers. She'd been receiving death threats since becoming a Ranger. Alice and Valerie assured her they'd figure out who was behind the threats. Danny investigated and found that Nia's own brother had been the source of the threats, claiming he wanted to protect her, saying that the other Rangers didn't have her back, which would spell death in a combat situation.[11]

Joey SinghEdit

When Joey Singh ran away from his father, Vincent Singh, Vincent came to AVI for their help finding him. He claimed his ex-wife's bipolar disorder was the reason she only had supervised visits twice a month with her. They looked into his disappearance and found his cell phone smashed in the woods. Reviewing security footage from a nearby camera showed Joey being led away by a couple. Vincent and Joey's mom, Karen Singh, both said they didn't recognize the couple. However, Sophie was able to get data of Joey's broken phone that indicated that Karen had sent Joey pictures showing him how to find the couple and how he'd know they were safe. They confronted Karen, but she said that she wanted what was best for Joey and that was being away from his father, who viewed him only as an expense and only kept him because his accountant told him it'd be cheaper to keep him than to let Karen have him and pay child support. He'd paid off Joey's caregivers and Karen's therapist to say she was dangerous to Joey. Valerie and Alice told Karen they could do something if he'd bribed people, but she ended to tell them where Joey was. She refused, saying she'd rather go to jail if that meant Joey was safe and happy. They found proof that Vincent had paid people off and showed him that it would cost him more to fight the charges but they'd keep it quiet if he relinquished Joey to his aunt, recanted his claims, and paid a monthly stipend for Joey's care.[12]

Kelsey BraddockEdit

AVI took the case of Kelsey Braddock who had a contract with a record company that refused to release her album. They looked for ways to get her out of her contract and discovered that Nathan Ashmore, a producer, lied to her about sending the masters to the record company and was holding the release. Sophie went undercover to talk to Nathan and visit his studio. While she was there, she hacked his computer and copied his files. They found a tape of Kelsey having sex with her boyfriend among the files and Nathan's contract with a porn company. They told Kelsey, who confronted Nathan. He admitted to what he'd done and said he was trying to help her. A sex tape would make her record go viral. He said he owned the footage because it was filmed in his studio. They were at a loss for what to do until Alice realized that Tyler, Kelsey's boyfriend, was only 17 when the tape was filmed, making it child pornography. They had Nathan arrested and told Kelsey she was free from her contract and free to do whatever she wanted.[13]

Tracking MargotEdit

After Alice planted a tracking device on Margot, the team tracked her. They found where she was staying and broke in to catch her, but found that she'd already left. They estimated how much money Leah Wells had been able to make in the time and then tracked currency exchanges to find the money. They located it and went to bust Margot. However, they were nearly foiled when Reggie recognized Shawn outside the bank and told Margot to get out. Margot was arrested before she could leave.[14]

The WeddingEdit

Despite the risk to Ben's and their own safety, AVI decided to go ahead with trying to take down the Firm at the wedding. Ben got them invitations, but when they showed up at the address, they found a construction site. Valerie believed Ben had played them, but Alice believed Ben wanted to keep them away for their safety. She had Sophie look for Virginia Foster's other properties and they found one with many cars out front, meaning it was where the wedding was being held. At the wedding, she confronted Ben and they laid out the plan to bust Sybil. The plan went well and Sybil was arrested, but Margot left with the cash. Alice then planned to leave the country with Ben, who needed to get away to avoid being arrested. When she went home to get her bag, she was surprised to find the FBI there. They'd received a tip about the stolen painting and believed she'd stolen it. When they went to AVI, they found enough evidence to arrest her for the theft. As the led her away, Ben came in and confessed to the crime, telling them to arrest him instead.[15]

Tommy's CaseEdit

Alice's brother, Tommy, came to town in order to get Alice's help. He received a letter from the IRS saying he had $3 million in an account in his name and he had to pay taxes on it. He knew he didn't have that kind of money himself, so he had Alice look into where it was and where it came from. He wanted to keep it, but Alice insisted that they had to figure out if it really belonged to someone else first. She asked him about all his previous jobs. With that information, Sophie and Danny found the money in an overseas account and had Tommy answer security questions to access it. They then figured out the money was put into an account by his former employers, the Kincaids, whose dogs he walked. Their phones were disconnected and their credit cards hadn't been used, so Danny and Alice went to their house, where the mail was piled up. The dogs were tracking blood around the house and they found the Kincaids' dead bodies in the house. Tommy asked if he could keep the money because the Kincards were dead. When Alice told him he couldn't, he tried to leave, but Alice told him she'd call the FBI if he tried to take it. She also changed the password so he couldn't access it.[16]

Danny learned that the Kincaids were using aliases that only went back five years. Tommy had the idea to use the dogs' registrations to figure out their real names. They found the name Patrick Murphy and the pile of mail from their house had a letter to Patrick Murphy from The Optican Group. Danny then had a friend from the FBI run the name through NCIC and found that The Optican Group was tied to The Southland Drug Cartel. The money in the account was drug money.[17]

Alice feared for Tommy's life, knowing that once they knew he had the money, they'd come to kill him or the FBI would come to arrest him. She wanted to put him in protective custody, but instead, he fled and got Rhys to get him a new identity. They also learned that he'd planted a keylogger on their system in order to get access to the money, which he moved out of the account. Theo Tasker from the cartel found Alice and threatened her and her friends if he couldn't find Tommy and the money. When Tommy sent Sophie some apology earrings, Alice used them to figure out that Rhys had been involved in Tommy's disappearance and went to Rhys to get the name Tommy was using. She also learned from Nick that Tommy had been working for the Southland Cartel. She was able to find Tommy just as he was being threatened by Theo Tasker in a parking garage. Tommy discovered that Rhys had stolen the $3 million, which he needed to give Theo in order to save his life. Alice said she'd get Theo the money to spare Tommy. She turned Tommy over to the police and then went to get the money from Rhys's car. However, she got into a standoff with Ben, who needed the money to save Rhys's life.[18]

After Alice had gotten the money, Nick and Valerie told her that they had to charge Tommy with the murder of the Kincaids. When she went home, it had been ransacked. Tommy held a gun on her and and asked her where the money was. She wouldn't tell him and he admitted that he'd called Ethan Ward to bail him out. She was upset because that meant she owed him.

Alice worked with Tommy to learn more about Theo Tasker. Theo then called Alice and told him he'd learned about Tommy's arrest and release. He wanted the money and Tommy. He claimed he just wanted to talk. Alice instead went to Ethan Ward to ask him to use his contacts at the SEC to help her. She met with Theo and he received a call saying the assets of all his shell corporations' assets had been frozen pending review. She then goaded him into confessing to murdering the Kincaids. He was arrested and agreed to make a deal with the police to take down the cartel. When she went to get the money to turn it over to the police as evidence, she found it missing and a note from Tommy. She used the tracker she'd placed in the bag to trace him to the airport. She gave him a chance to come work for her and make things right, but he decided to leave. She told him not to come back, that she was done with him.[19]

Margot's CaseEdit

After a sniper shot Jamison dead while he was on top of Margot, she came to Alice and Valerie to ask to retain their services.[20]

Margot offered Valerie and Alice $500,000 in order to find the person who was trying to kill her, with the same amount when the found the person. After talking it over, they decided to take her on, because they needed the money to keep AVI running and Alice wanted to keep an eye on Margot. They investigated the bullet that had been used to kill Jamison and found that there were no markings. Margot told them it was The Hammer, an assassin who is paid and hired anonymously, so no one knew who he was. In order to draw him out so they could catch him, Alice, Valerie, Sophie, and Margot all went out dressed alike and holding identical umbrellas. They walked around the plaza, confusing The Hammer. He eventually took shots at Sophie and Valerie, trying to figure out which was Margot. But Danny had figured out where The Hammer was stationed and Alice went to him. She physical fought with him and finally restrained him. They took him to Margot's hotel room, where she wanted to kill him. Since their job was done, the AVI associates left Margot alone with the Hammer. Once they were gone, she said she wasn't going to kill him. She wanted to hire him.[21]

When Margot said she had a new lead and offered them another $500,000, Valerie sent Danny and Sophie to check it out. They were shocked to learn that Margot was paying The Hammer, who agreed to cooperate with them to figure out who hired him. Sophie used the information he provided to track the payment to a bank. Margot and Danny went into the bank together with the idea that Danny would hack into the CCTV to allow them to see who made the deposit for the second half of the money once The Hammer provided proof of death. However, Margot instead gave Danny a briefcase with a smoke bomb, creating a distraction while she hacked the camera feed herself. Danny then reviewed the footage and found a picture of the woman who had hired The Hammer, whom Margot said she didn't recognize.[22]

They looked at the photo of the woman from the bank and Valerie saw that the outfit she was wearing and bag she was carrying was stolen. Sophie and The Hammer took the photo around and found the hotel where the woman was staying. They got into her room and found that she had a wall dedicated to tracking Margot's life and all her associates. When she came back to her room, she fled. Valerie chased her, but she got away on a motorcycle. They re-created her wall at AVI and found a picture of a church. Danny remembered overhearing Margot and Ben talk about a church and Margot admitted it was their safe house. They stored weapons and money there, all the assets they'd acquired in Los Angeles. They set a trap to catch the woman breaking in. They waiting in the vault and when she arrived, Margot asked who she was. The woman surprised them by calling Margot "mummy."[23]

They took her back to AVI, where they learned she was named Tessa Riley and was just fifteen years old. She'd been bought by the Riley family shortly after birth. Unbelieving, Margot pulled out a few of her hairs to have them tested and went to Sybil after talking to Tessa in order to confirm details of what happened with Margot's baby and all the details matched up with Tessa's story. Sybil also told Margot she was being extradited to stand trial in England for her crimes.

The Rileys said they didn't want Tessa back. She'd been expelled from school after threatening to blow it up and then ran away. When the phone they took off Tessa chimed with a text message about phase two, they realized Tessa was working with someone. They used the phone to figure out it was Felix McCall, an explosives expert. They found his apartment door rigged with explosives. When they found Felix had been near Sybil's law firm, they realized she was in danger as well. Danny and Margot went to where she was being moved and confronted Felix. While Danny subdued him, Margot drove the prison van away with Sybil in it. She then set Sybil up to leave the country, but at the last minute, asked her to stick around for a bit. [24]

Nick's CaseEdit

Nick came to Valerie asking to hire AVI to figure out what dirt was out there on him, because he was being vetted for Chief of Police. He was particularly worried about Ethan Ward, because some people believed Ethan bought off the police and he wanted to know why the case was really closed, so people would know he had nothing to do with it. After talking to Alice, they agreed to take the case.[25]

Alice warned the others that they would learn things about her that she wasn't proud of. They looked into the case to find out if Ethan had paid off the cops to beat the murder charge. Sophie learned that the cop who died, Steven Mason, had been in rehab for drug addiction. Valerie insisted that he was a good cop. He had demons, but he beat them. They kept looking into things and Valerie found that Mason's widow was making the same monthly payment of $10,000 to a fake charity. It was registered to Martin Dixon. They learned he had something in a safe deposit box that he'd put there a week after Mason's death and hadn't touched since. They called him and said the bank branch was closing and he needed to retrieve his items and confronted him outside. He had an envelope with a copy of Mason's suicide note. He'd killed himself because he was struggling to make ends meet and knew his family would collect if he were killed in the line of duty. Dixon then blackmailed Mason's widow to keep it quiet.[26]

Ethan's Security BreechEdit

When Ethan's company was hacked and his personally information as well as that of his board members was posted online, he asked Alice to investigate the hack. She agreed, but after he was gone, Sophie admitted to Alice that she had asked a hacker friend of hers to hack Ethan's company to look for clues while they were investigating him. She might have left a way in for someone else. Sophie insisted that Heather wouldn't have leaked the information herself. When Heather didn't respond to Sophie's attempts to contact her, Sophie asked Danny to help break into her place, but before they could, Alice and Valerie came in and told Sophie that the police had found Heather's body in her apartment. It was a murder made to look like suicide. And someone had paid her a significant amount of money, probably to leak the information. Danny enlisted Margot's help to figure out who had been hired to do the job. She gave him a name and then Sophie and Alice confronted him, hacking his car to get an edge over him. He was arrested, but refused to talk. Sophie figured out that Marcus Nash had hired the assassin. He was competing with Ethan for contracts. They confronted him at a party and let all the attendees know what Marcus had done. The killer he hired made a deal to put Marcus away.[27]

Casing The Wolf's DenEdit

Margot, in preparation for a job, asked Danny and Sophie to check out the security of an illegal gambling establishment called The Wolf's Den, particularly the placement of the cameras and if the games were rigged. They looked into it and told her that the roulette wheel was the only game the house didn't have rigged. She then asked them to look into the financials of Matthew Keegan.[28]

Finding FelicityEdit

After learning that Felicity had betrayed her and that Rhys wasn't behind it, Margot went to AVI to get their help to figure out who had saved Felicity's life and where she'd gone from there. Rhys, upset that Felicity was still alive, joined AVI to help them. He told them he'd called The Cleaner to clean up the body. He used Raymond Taggart to make contact with The Cleaner and have him come to a staged site, where Rhys posed as a corpse and then the questioned The Cleaner about what had happened that night. He admitted that when he arrived, the body was already gone. Sophie went to the Weatherby to get access to the hotel servers and security cameras in order to figure out who had come and gone that night. As Sophie went to leave Margot's hotel room, she was confronted by Felicity, who had shot both the guards at the door. Felicity shot Sophie as well, before taking Tessa with her. Soon after, Danny found Sophie and called for help. Sophie was taken to surgery. While they waited for news, Danny shocked Alice and Valerie by telling them he was dating Margot.[29]

Helping MargotEdit

Danny's help as a sniper was enlisted to watch the people who came to meet with Margot, Rhys, and Ben. Alice called him off at the last second to save Ben's life.

After Margot escaped her kidnapping and hid at Alice's house, she called Danny and asked him to get a jet for her to escape with Tessa. He borrowed Ethan's jet and airport for her to use. She invited him to go along, but after Alice told Ben to go with them, Danny decided to stay behind to take care of Alice, ending things with Margot.[30]



Sophie NovakEdit

Soon after Sophie started working at AVI, Danny developed a crush on her and became jealous of her close relationship with Shawn Sullivan. He asked her out, but she told him Shawn had already asked her to dinner.[31]

When Danny learned Sophie was a singer and had been in a band with Kelsey Braddock, he became desperate to see the videos. After they finished Kelsey's case, Kelsey sent him a link to a video of Sophie singing.[32]

At the Foster/Duncan wedding, where they were working undercover, Danny and Sophie nearly kissed. However, their kiss was interrupted by Shawn, whom Sophie had just said wasn't her type. After Shawn asked Danny out on a date, Danny came back to Sophie and they shared a kiss.[33]

When Tommy came to town, Sophie said he was cute, making Danny jealous. She told him that he hadn't made his move, so he said he'd make his move Friday night at 8 PM. She showed up much more dressed up than he was. They went to leave, but Tommy came in and returned Danny's jacket. Alice and Valerie then came in, bringing in AVI's computers and files, which the FBI had returned. Danny and Sophie agreed to a rain check.[34]

Sophie was disappointed when he learned that Danny was looking into Tommy. She also learned that he had investigated her, as he said was part of his job. She gave him an ultimatum to come with her and learn he could trust some people or keep investigating. When he asked for five more minutes, she left without him. Later, after being shot at while posing as Margot, she was shocked when Danny left and didn't talk to her.[35]

Nia BrooksEdit

While trying to figure out who was sending Nia death threats, she and Danny slept together.[36]

Shawn SullivanEdit

At the Foster/Duncan wedding, where they were working undercover, Shawn surprised Danny by asking him out on a date.[37]

Margot BishopEdit

After Danny got Margot a picture of the woman who wanted to kill her, he came to her hotel to see if she knew who it was. Margot said she didn't. She tried to dismiss Danny, but Danny, frustrated, came back into her room and the two had sex, agreeing that it didn't mean anything.[38]

They continued their sexual relationship as AVI continued to work on Margot's case.[39]

When Sophie learned about their relationship, she expressed concern that Margot was using him. Danny said he was using her a bit, too, but Sophie pointed out that he's the one who would end up dead.[40]

After Sophie asked Margot not to get Danny killed, Margot started to be more protective of Danny. After he helped her steal a drug shipment, she fired him, but said it was for the best because then they didn't have to tell HR that they were dating.[41]

When Margot left on a plane with Ben and Tessa, she invited Danny to come along, but he decided he needed to stay to take care of Alice.[42]


His mom believes that he's running away from home.[43]


Thomas VaughanEdit

Danny and Tommy got along well, but their relationship was strained by Tommy leaving without repaying the $750 Danny had loaned him and also took Danny's favorite jacket.[44]


Danny is one of the private investigators at Anderson/Vaughan Investigations. He often goes out into the field.

Notes and TriviaEdit

  • He was known as James McGrath in development.
  • ABC Bio: DANNY YOON is Alice's seasoned investigative partner in the field. Danny is a mischievous, irreverent, girl-crazy PI – fiercely loyal to Alice and Valerie – who's not at all squeamish about breaking the law, if it helps AVI solve a case and help a client.
  • He's from Northfield, Vermont, which has a population of 6,207.[45]


A more complete gallery with pictures of Danny Yoon can be found here.


  1. The Dining Hall, 2x03
  2. The Benefactor, 1x06
  3. The Hard Drive, 2x06
  4. The Pilot, 1x01
  5. The Pilot, 1x01
  6. The Real Killer, 1x02
  7. The Trial, 1x03
  8. The Princess and the I.P., 1x04
  9. The Larágan Gambit, 1x05
  10. The Larágan Gambit, 1x05
  11. The Benefactor, 1x06
  12. The Ringer, 1x07
  13. The Package, 1x08
  14. The Happy Couple, 1x09
  15. The Wedding, 1x10
  16. The New Deal, 2x01
  17. The Hammer, 2x02
  18. The Dining Hall, 2x03
  19. The Family Way, 2x04
  20. The New Deal, 2x01
  21. The Hammer, 2x02
  22. The Dining Hall, 2x03
  23. The Family Way, 2x04
  24. The Bad Girl, 2x05
  25. The Bad Girl, 2x05
  26. The Hard Drive, 2x06
  27. The Birthday Party, 2x07
  28. The Knock-Off, 2x08
  29. The Cleaner, 2x09
  30. The Mockingbird, 2x10
  31. The Princess and the I.P., 1x04
  32. The Package, 1x08
  33. The Wedding, 1x10
  34. The New Deal, 2x01
  35. The Hammer, 2x02
  36. The Benefactor, 1x06
  37. The Wedding, 1x10
  38. The Dining Hall, 2x03
  39. The Family Way, 2x04
  40. The Knock-Off, 2x08
  41. The Cleaner, 2x09
  42. The Mockingbird, 2x10
  43. The Ringer, 1x07
  44. The New Deal, 2x01
  45. The Ringer, 1x07