Gallery: 1/9
Bridget Moynahan as Erin Reagan
Erin is the assistant District Attorney. She later becomes bureau chief, and is the only daughter of Frank Reagan. Erin graduated Valedictorian from Columbia Law School. (Getty)
Gallery: 1/9
Erin is the assistant District Attorney. She later becomes bureau chief, and is the only daughter of Frank Reagan. Erin graduated Valedictorian from Columbia Law School. (Getty)