The Riverdale actor, 28, has signed on to star as the late Hollywood legend in the upcoming biopic Jimmy, Variety reports.

KJ Apa has signed on to star as James Stewart in “Jimmy,” an upcoming biopic about the “It’s a Wonderful Life” legend.

KJ Apa, of "Riverdale" fame, has signed on to star as WWII veteran and “It’s a Wonderful Life” star, Jimmy Stewart.

KJ Apa, best known for his role as Archie in Riverdale, will play Hollywood legend Jimmy Stewart in a new biopic.

Apa probably won’t need a lot of prepwork beforehand; he’s got plenty of experience with flashbacks and being a 1940s icon.