White Collar Wiki
Diana Berrigan
Gender Female
Profession Special Agent
Specialty White Collar Crime
Family Theo

Portrayed By Marsha Thomason
Season(s) 1, 2, 3, 4, 5, 6
First Appearance Pilot
Last Appearance Au Revoir
Episode Count 67 episodes
Images of Diana Berrigan

Diana Berrigan is an FBI Special Agent assigned to the White Collar Division in New York City.

Character Profile[1]

Whip-smart and dedicated, Diana Berrigan (Marsha Thomason) is one of the few people in the bureau whom Peter trusts implicitly – which is why it was such a blow when she transferred to Washington, DC for a desk job. Now that she's back in New York, she's part of the action once more, even though the move to the Big Apple is took a toll on her relationship with her girlfriend, Christie.

Still, Diana is glad to be working with her old mentor again, and while she spars with Neal from time to time, even she would have to admit that the three of them work well together.

Diana is the daughter of a diplomat and spent a lot of her childhood living in hotels. She revealed a hotel secret to Neal Caffrey while on a case that behind paintings in a hotel, there can often be a piece of personal art, created by a regular of the hotel room, that creates something to make it feel more like home. Charlie, her bodyguard taught her this.

Diana and Neal create their own art, Neal's bridge.

He was killed in the line of duty, protecting her and she has struggled but come to terms with not blaming herself for his death, feeling that is not what Charlie would have wanted. She and Neal then made their own piece of art. (Need to Know)

In the Season 1 finale, Out of the Box, Diana comes back from the FBI office in D.C. to the New York Bureau where Peter is assigned to help him get Agent Fowler out of his hair for good. She gets a warrant to search Fowler's computer, but finds nothing of use except an encrypted file. The data on the file self-destructs when she attempts to access it.


  • Christie was Diana's girlfriend. They met through a pottery class, leading to a "Ghost" (1990 movie) theme to jokes about how they got together. They broke up when Diana became apprehensive over the prospect of getting married.


  1. USA Network