I think this guy is the same guy as this guy.

IMDB disagrees, revealing that the former is the Dean on Community, while the latter is...well...not.

I'm not so easily convinced. I think it's the same guy, with Jim passing off the lower quality gigs to "J.P." 

This didn't start out as a TIW entry, but became one when I needed a definitive call.

Wiki: Jim Rash

Wiki: J.P. Manoux

I guess I'll play along with the charade that these two are really two distinct, individual human entities.