The Late Show with Stephen Colbert S11 | Michael J. Fox Swapped Alex P. Keaton For Marty McFly Every Day While Making "Back to the Future"

Beloved actor Michael J. Fox had already achieved stardom portraying Alex P. Keaton on "Family Ties" when he was cast as Marty McFly in "Back to the Future," and he tells Stephen about the insane schedule he kept when those two productions overlapped. Stick around for more with Michael J. Fox and grab a copy of his new memoir, "Future Boy," available now. #Colbert #Comedy #MichaelJFox #FutureBoy #Books #BacktotheFuture #MartyMcFly #AlexPKeaton #FamilyTies #MichaelJFoxFoundation #StephenColbert #TheLateShow Air Date: Oct 21, 2025