Brian Stack

Stack became a sketch writer on Late Night with Conan O’Brien in 1997, and served as a writer, actor and editor on the show and after O’Brien’s move to the Tonight Show in 2009. Stack played many recurring characters on the show, most notably those clad in anachronistic or elaborate outfits, and was known for playing many characters with long beards and mustaches, such as God, Zeus, Socrates, Gandalf, and The Interrupter. Stack makes occasional appearances on the Tonight Show, such as when he played an NRA spokesman who intimates violence to accomplish his agenda.

Read more about Brian Stack on wikipedia.

Shows:

Joel Murray and Friends, Merkin Penal