More images from the Toronto set of “Scott Pilgrim vs. the World” have appeared on director Edgar Wright's photoblog and MySpace page. This time, Chris Evans (“Fantastic Four”) poses with a sketch of his character, Lucas Lee, while a mystery actor peers out from behind a curtain with a "?" sketch.
Online speculation seems to peg rumored "Scott Pilgrim" cast member Jason Schwartzman as the mystery actor, since the rest of the film's cast members -- and the characters they're playing -- have already gone public. Read on for the mystery photo and a full-size shot of Evans as Lucas Lee.

Evans' character is the second evil ex-boyfriend that Michael Cera's Scott Pilgrim (who we got our first look at yesterday) must fight to win the love of Mary Elizabeth Winstead's character, Ramona Flowers. The character is a pro-skateboarder turned movie star, who is constantly mistaken for Luke Wilson in the comic book.

Wright has been posting a photo a day, with Cera popping up yesterday, and Mary Elizabeth Winstead and Ellen Wong revealed previously. "Scott Pilgrim" creator Bryan Lee O'Malley first pointed fans at the mystery photo today via his Twitter feed, with a cryptic post that simply read "WHO????" and a link to the photo.
Pretty meta for Chris Evans to play a movie star in a movie, eh? What do you think? And who do you think the mystery actor is?