Nathan Fillion is in Guardians of the Galaxy 2
It's a nice little cameo for an actor who has been friends with director James Gunn for years, playing the lead in his 2006 feature Slither and also popping up in webshow PG Porn. And it looks like the two are set to work together again for Guardians of the Galaxy Vol 2.
That film is currently shooting in Atlanta, Georgia and Fillion has been spotted on set - kind of. Actually photos have emerged of the actor appearing in posters for made up movies starring the character of Simon Williams. That's the alter ego of a superhero called Wonder Man, who also spent time as an actor.