The actress — who was a CSI regular for the show’s first seven seasons — left the procedural at the start of Season 8 after appearing in only a handful of episodes. She returned for Season 9, but opted to remain a guest star — until now. Despite her change of status, Fox won’t appear in every episode this season. “She is committed to doing 15 episodes,” says a source.
The news comes as CSI is undergoing a major cast shakeup as it enters its 12th season. As previously reported, Ted Danson has joined the cast as a new supervisor, filling a void left by the exit of Laurence Fishburne.
CSI launches its new season on Sept. 21, in a new time slot — Wednesdays at 10/9c.