15 Actors You Totally Forgot Were In DC Comic Book Movies

15. Jon Favreau

The Movie: Batman Forever

Role: Assistant

Long before he was playing Robert Downey Jr's body-guard, confidante and friend Happy Hogan in the Iron Man movies (as well as directing them, of course), a mostly pre-fame Jon Favreau turned up doing basically the same job for Bruce Wayne.

Having played minor parts in Rudy and Seinfeld - but before he made his big break in Swingers - the future Disney directing stalwart appeared in the background of Batman Forever, accompanying Val Kilmer's Wayne on his workplace inspection rounds. Blink and you'll probably miss him even now.