In Space with Markiplier

Mark Fischbach

Mark

Jordan Bradley

Captain

Lio Tipton

Lady

Pamela Horton

Celcionna F. Kelvina

Mick Lauer

Gunther B. Gunnerson

Robert Muyskens

Burt

Steve Taylor

Computer (voice)

Matthew Patrick

Theory Crew

Wade Barnes

Wug

Morgan Calhoun

Bandit

Arin Hanson

Narrator (voice)

Holt Boggs

Shuttle Pilot

Ethan Nestor

Wormhole

Baldermort

Invincible Tower

Tyler Scheid

First Mate

Linda Bradshaw

Dorene L. Whitacre