Grimsburg

Jon Hamm Marvin Flute (voice)

Erinn Hayes Harmony Flute (voice)

Rachel Dratch Stan Flute (voice)

Alan Tudyk Dr. Rufis Pentos / Mr. Flesh (voice)

Kevin Michael Richardson Detective Greg Summers (voice)

Greg Chun Lieutenant John Kang (voice)

Martin Short Otis Volcanowitz (voice)

Kaniehtiio Horn Wynona Whitecloud (voice)

Wendi McLendon-Covey Chief Patsy Stamos (voice)

JP Karliak (voice)

Piotr Michael (voice)

Rosie Perez Martina Martinez (voice)