he ninth season of Law & Order: Criminal Intent premiered on the USA Network March 30, 2010, and ended on July 6, 2010.
After the two-part season premiere, Vincent D'Onofrio, Kathryn Erbe, & Eric Bogosian left the show, Bogosian's character was killed off in the first part Bogosian was replaced by Mary Elizabeth Mastrantonio, playing Captain Zoe Callas. Saffron Burrows joined the cast, replacing Julianne Nicholson who played Detective Megan Wheeler.
The scene cards return in this season after three seasons.
Episodes from the ninth season of Law & Order: Criminal Intent also aired on NBC beginning Sunday, June 20 at 10:00 PM with repeats of those episodes airing Saturdays starting June 26 at 8:00 PM. The episodes aired on NBC until Sunday, September 5, 2010. Bravo began airing ninth-season episodes during early morning hours on Sundays starting November 21 at 2:00 AM until 4:00 AM.Overview from themoviedb.org