Jason Mantzoukas (born December 18, 1972) is an American comedic actor, writer, and podcaster. He is best known for his recurring role as Rafi in the FX comedy series The League, and as one of the three co-hosts of the podcast How Did This Get Made? alongside Paul Scheer and June Diane Raphael. Mantzoukas has also appeared in the films The Dictator, Sleeping with Other People, They Came Together, Conception, and John Wick: Chapter 3. He has had recurring roles on three TV shows created by Michael Schur: Parks and Recreation (as Dennis Feinstein); Brooklyn Nine-Nine (as Adrian Pimento); and The Good Place (as Derek). He also voices the character Jay Bilzerian in the Netflix TV show Big Mouth. He is often known for playing "crazy, funny weirdos."