Marsha Thomason: Marsha Thomason. Actress: White Collar. Marsha Thomason is a British television and film actress who is known for playing Sara Evers in Disney's The Haunted Mansion, Naomi Dorrit on the ABC series Lost, FBI agent Diana Berrigan on the USA Network series White Collar, Francine Bridge on Sky's Cobra and DS Jenn Townsend in ITV crime series The Bay.
