Fred Savage wouldn't hang out with co-stars off-set while filming 'Friends From College'

Actor Fred Savage arrives at the 21st Annual Critics' Choice Awards in Santa Monica, California January 17, 2016. REUTERS/Danny Moloshok - RTX22T0Q

Keegan-Michael Key and the cast of the new Netflix series “Friends From College” couldn’t get co-star Fred Savage to socialize when the cameras weren’t rolling.

“Good old Kevin Arnold,” Key told Page Six, referring to the name of Savage’s childhood character on “The Wonder Years.” “As lovely and delightful as he is, has a very strict policy of not hanging out with his cast members.

"When the director yelled, 'Cut! We’re wrapped'... he goes back to his hotel room and watches prime time television all night."

But Key concedes, “Not a bad policy.”

Billy Eichner added, “He really creates boundaries. He’s like ‘Nope, I’ve had enough of you.’ ”

And Nat Faxon chimed in, “He basically said, ‘We’ll be friends on-set, and when we wrap I will no longer be your friend,’ and he was not kidding. I made it my purpose all season to get him to hang out with me because he’s such a fantastic, lovely hilarious guy... I succeeded, twice.”

Faxon figures, “He’s such a pro and has been in the business longer than anybody, so he’s like, ‘I’m going to do my thing, and then go home.’ ”

This article originally appeared in the New York Post's Page Six.