Fiona Bishop

Loretta Castillo (Voice)

Dee Bradley Baker

M.E.R.C. / Misc. (Voice)

Olivia Munn

Phoebe Callisto (Voice)

Grey DeLisle

Stella / Queen Gemma / Misc. (voice)

Diedrich Bader

Admiral Crick / Misc. (Voice)

Cullen McCarthy

Miles Callisto (Voice)

Ivy Bishop

Mirandos (voice)

Justin Felbinger

Miles Callisto (Voice)

Sam Lavagnino

Blodger Blop (voice)

Neil deGrasse Tyson

Main Title Narration (voice)

Issac Ryan Brown

Haruna Kitumba (voice)

Elan Garfias

Commander Nemex (voice)

Manny Montana

Zeno

Danny Jacobs

Bobble Blopp/Crowd(voice)

Tom Kenny

Leo Callisto/Blibby Blopp/Crowd(voice)

Mark Hamill

Gadfly Garnett (voice)

Ethan Wacker

Pip Whipley (voice)

Julie Nathanson

Artist Bot (voice)

Adrian Grenier

Captain Joe (voice)

John DiMaggio

Aggro (voice)