Ultrahyperball

Thomas Middleditch

Penn Zero (voice)

Tania Gunadi

Sashi Kobayashi (voice)

Adam Devine

Boone Wiseman (voice)

Alfred Molina

Rippen (voice)

Larry Wilmore

Larry (voice)

Sam Levine

Phyllis (voice)

Lea Thompson

Vonnie (voice)

Gary Cole

Brock (voice)

Rosie Perez

Aunt Rose (voice)

Lenny Venito

Uncle Chuck (voice)

Jason Alexander

Coach Wallace (voice)

Jane Kaczmarek

Coach Jackie (voice)

John K. Anderson

Announcer Mike (voice)

John Henson

Announcer Ron (voice)

Dee Bradley Baker

Referee (voice)