Get ready to see some familiar faces on the upcoming 12th season of NCIS. While he drifts in and out of consciousness post-surgery (which will be performed by guest star Jon Cryer), Gibbs once again begins having hallucinations involving Mike Franks (Muse Watson), his former colleague/mentor who was killed in Season 8. Episode 2 finds an old friend bringing a case to Gibbs "that sheds a bunch of light on Gibbs' past and things that we still don't know about," Glasberg teases.