Fred Armisen (born December 4, 1966) is an American actor, comedian and musician best known for his work as a cast member on Saturday Night Live, and portraying off-color foreigners in various comedy films such as EuroTrip, Anchorman and Cop Out. With Carrie Brownstein, he is the co-creator and co-star of the IFC sketch series Portlandia. 
On Episode 242 (3/23/12) of Real Time With Bill Maher, Fred Armisen stated that he was an Atheist.
Bill Maher: What religion are you?
Fred Armisen: I'm an atheist.