Before he found mainstream success on Parks and Recreation, the actor took on roles in movies and shows you've probably forgotten — and some he wishes you would.
Because ASSSSCAT 3000 was already taken.
Between the late nights and the inside jokes, here are some ways you can spot an improviser from a mile away.
Improv is coming back to TV! Celebrate the premiere of "Trust Us With Your Life," a new improv show starring much of the "Whose Line Is It Anyway" cast, with these classic clips.