No, Ryan Reynolds did not appear in the movie "Donnie Darko".
The 2001 movie Donnie Darko tells the story of a young man plagued by visions of a large bunny rabbit that manipulates him to commit a series of crimes, after narrowly escaping a bizarre accident.
The movie starred Jake Gyllenhaal, Jena Malone and Mary McDonnell. See full cast and crew at IMDb.
Ryan Reynolds is one of the most popular movie actors today. His first major breakthrough came from the 2002 comedy National Lampoon's Van Wilder. Since then, he has proved to be adept at all kinds of films, from the comic-book action flick The Green Lantern (2011) to the serious drama Buried (2010).
See Ryan Reynolds List of Movies and TV Shows at TVGuide.com
Check out 25 Things You May Not Know About 'Donnie Darko', shared by Moviefone.com.