Nathon Fillion to Star in Guardians of the Galaxy

Director James Gunn recently revealed that Nathan Fillion (Firefly, Castle) will have an appearance in Guardians of the Galaxy. Now, as soon as it heard this, the rumor mill kicked into high gear trying to figure out who he would play. Gunn denied that he would be playing the part of Nova. Some current rumors seems to suggest that Fillion will be voicing the psychic cosmonaut dog, Cosmo. Now this is just speculation, so be sure to pay attention on August 1st.

“@STARS_TyranT: Are the rumours true that he has some part in the film?” @nathanfillion has a very small fun cameo he did as a favor to me.
— James Gunn (@JamesGunn) June 21, 2014

The rumors of my pal @NathanFillion playing Nova in #guardiansofthegalaxy have been greatly (and entirely) exaggerated. Sorry, humans.
— James Gunn (@JamesGunn) June 21, 2014