Bill Hader

Self

Stephen Colbert

Ace / Dr. Brainio (voice)

Steve Carell

Gary / Police Commissioner (voice)

Tracy Morgan

Mr. T. (archive sound)

Bill Chott

Announcer / Chief of Police (voice)

Robert Smigel

Bighead / Beetles of Zolaro / Lizardo / Half-Scary (voice)

Ana Gasteyer

Queen Serena (voice)

Louis C.K.

Writer