Michael J. Fox is totally ready to return to Shrinking. The Back to the Future acting legend famously appeared as a guest star in the series' third season, and he's told People that he'd be super down to come back for Season 4 if they'll have him. Asked at an event this week whether he'd like to come back to Shrinking, Fox said, "Oh, absolutely. Absolutely. I love Bill [Lawrence, co-creator and co-write of the show] and I'm so happy it's a success. And it's such a great time being with those actors. It's so important to me to have that to go to. And I would absolutely do that in a heartbeat.