Mark Fischbach as Mark

Jordan Bradley as Captain

Lio Tipton as Lady

Steve Taylor as Computer (voice)

Morgan Calhoun as Bandit

Arin Hanson as Narrator (voice)

Mick Lauer as Gunther B. Gunnerson

Pamela Horton as Celcionna F. Kelvina

Robert Muyskens as Burt

Wade Barnes as Wug

Holt Boggs as Shuttle Pilot

Linda Bradshaw as Dorene L. Whitacre

Matthew Patrick as Theory Crew

Brian Wecht as Ninja Crew

Dan Avidan as Sexy Crew

Tyler Scheid as First Mate

Ethan Nestor as Wormhole

Danielle Ploeger as Alien Teen

Seán McLoughlin as Drones

Imane Anys as Cryo Computer (voice)

Baldermort as Invincible Tower

Carlos Pena as Crew 1

Roderick Loving as Crew 2

Jason C Campbell as Crew 3

Judy Lee as Crew 4

Sophia Tinsley as Crew 5

Reggie Lussier as Crew 6

Kai Woodley as Crew 7

Gabriel Leite as Crew 8

Amani Alexander as Crew 9

Adam Weightman as Crew 10

Mo Alfy as Joe (uncredited)

Sara Burke as Window Guard (uncredited)