Beavis and Butt-Head Do the Universe

Andrea Savage
Serena Ryan (voice)

Gary Cole
Mattison (voice)

Nat Faxon
Jim Hartson (voice)

Chi McBride
Metcalf / Judge (voice)

Chris Diamantopoulos
Police Officer / Prisoners / Corrections Officers (voice)

Brian Huskey
Richard Wack (voice)

Tig Notaro
Professor (voice)

Stephen Root
Jail Tattoo Artist (voice)

Martin Starr
Corrections Officer / Ball-kicking Biker (voice)

Jimmy O. Yang
Flight Specialist Jung / Jeff (voice)

Mary Birdsong
Reporter (voice)

Zehra Fazal
Butt-Head Fantasy Woman #1 (voice)

Ashley Gardner
Anita Ross (voice)

David Herman
German Tourist / Gage / Jail Warden (voice)

Toby Huss
Todd Ianuzzi (voice)

Phil LaMarr
Flight Specialist Jackson / NSA Agents / Police Officer (voice)

Toks Olagundoye
Campaign Aide / Butt-Head Fantasy Woman #2 & #3 (voice)

Tru Valentino
McCabe / Head Corrections Officer (voice)

Carlos Alazraqui
Flight Specalist Valdivia (voice)

Susan Bennett
Siri (voice)