'The Michael J. Fox Show' Stages A Mini 'Back To The Future' Reunion

Briefly: Marty and Doc are spending time together again. The core cast of Back to the Future is going to reunite, but not in a film. The Michael J. Fox Show has booked Christopher Lloyd to appear in an episode as "the eccentric principal at the high school where Annie (Betsy Brandt) teaches and will go toe-to-toe with Mike (Michael J. Fox)." In other words, he's playing the James Tolkan role.

Sadly, this isn't meant to be an ongoing thing; the guest appearance is currently only scheduled to be a one-off, in spring 2014. The episode is shooting this week.