Who played a regular role on Law and Order Criminal Intent?

Answer 1

The Law and Order: CI regulars were:

• Kathryn Erbe as Det. Alexandra Eames; 144 episodes
• Robert D'Onofrio as Det. Robert Goren; 141 episodes
• Jamey Sheridan as Capt. James Deakins; 111 episodes
• Courtney Vance as ADA Ron Carver; 111 episodes
• Leslie Hendrix as Dr. Elizabeth Rogers; 110 episodes
• Eric Bogosian as Capt. Danny Ross; 61 episodes
• Chris Noth as Det. Mike Logan; 36 episodes
• Jeff Goldblum as Det. Zach Nichols; 24 episodes
• Julianne Nicholson as Det. Megan Wheeler; 24 episodes
• Saffron Burrows as Det. Serena Stevens; 15 episodes
• Mary Elizabeth Mastrantonio as Capt. Zoe Callas; 14 episodes
• Annabella Sciorra as Det. Carolyn Barak; 13 episodes
• Traci Godfrey as Det. Agnes Farley; 10 episodes
• Jay O. Sanders as Capt. Joseph Hannah; 9 episodes
• Hudson Cooper as Det. Rosemont/Det. Jefferies; 9 episodes
• Alicia Witt as Det. Nola Falacci; 5 episodes
• Olivia D'Abo as Nicole Wallace; 5 episodes

Answer 2

The DAs on Law and Order Criminal Intent were:

• Courtney Vance (ADA Ron Carver), 111 episodes
• Brenda Withers (ADA Emma Niles), 3 episodes
• Theresa Randle (ADA Patricia Kent), 2 episodes
• Nick Sandow (ADA Roydell Getty), 2 episodes
• Bridget Regan (ADA Claudia Shankly), 2 episodes

Answer 3

Michael Moriarty played Executive Assistant District Attorney Benjamin Stone (1990-1994, 88 episodes)

Sam Waterston played Executive Assistant District Attorney Jack McCoy (1994-2010, 368 episodes of L&O, 2 episodes Homicide: Life on the Streets, 3 episodes SVU, 2 episodes Trial By Jury). Promoted to District Attorney 2007.

Linus Roache played Executive Assistant District Attorney Michael Cutter (2008-2010, 63 episodes; 2011-2012 as Manhattan Bureau Chief, 4 episodes SVU).

Harry Connick Jr. played Executive Assistant District Attorney David Haden (2012, 4 episodes SVU).