In Space with Markiplier— Full Cast

Mark Fischbach

as Mark

Jordan Bradley

as Captain

Lio Tipton

as Lady

Pamela Horton

as Celcionna F. Kelvina

Mick Lauer

as Gunther B. Gunnerson

Robert Muyskens

as Burt

Steve Taylor

as Computer (voice)

Matthew Patrick

as Theory Crew

Wade Barnes

as Wug

Morgan Calhoun

as Bandit

Arin Hanson

as Narrator (voice)

Holt Boggs

as Shuttle Pilot

Ethan Nestor

as Wormhole

Baldermort

as Invincible Tower

Tyler Scheid

as First Mate