About Diana Berrigan
Special agent Diana Berrigan played by Marsha Thomason
Diana assists on Peter and Neal’s first case together. Transferred to DC after her probation ends, Peter calls on her to help in his operations where she serves as his ‘right hand man’.
About Marsha Thomason
Marsha is an English actress who is known for her roles in Where The Heart Is, Burn It, Playing The Field and Prime Suspect. She has also featured in several episodes of Lost.