Elliott Gould

Oscar-nominated actor Elliott Gould will guest-star in the second episode of CSI's upcoming  season, TVGuide.com has learned exclusively.

Gould will play an old-school casino mogul who crosses paths with the team when one of his casinos becomes the crime scene. The episode will be particularly important for Catherine (Marg Helgenberger), whose father, Sam Braun, was also a casino boss.

Check out photos of the CSI cast

"We will find out more about the legacy Sam left Catherine in that episode," executive producer Carol Mendelsohn says.

Gould, 71, received an Oscar nod for 1969's swinging dramedy Bob & Carol & Ted & Alice and has appeared in dozens of other films, including Robert Altman's M*A*S*H and the Ocean's Eleven trilogy, in which he also played a former casino kingpin. On the small screen, he starred in the 1980s sitcom E/R and recurred as Ross and Monica's father on Friends.

Season 11 of CSI premieres Thursday, Sept. 23 at 9/8c on CBS.