Stephen Stills (Mark Webber)

Stephen Stills is played by Mark Webber in the film Scott Pilgrim vs. the World. Prior to this role, Webber had neither sung professionally nor played the guitar, but learned both in the weeks preceding filming. O'Malley said that the film version of Stephen Stills is homosexual, as well as that he remains closeted throughout the movie. O'Malley said that he "maybe doesn't fully understand himself yet."