Fiona Bishop
Loretta Castillo (Voice) (59 eps)
Dee Bradley Baker
M.E.R.C. / Misc. (Voice) (59 eps)
Tom Kenny
Leo Callisto / Misc. (Voice) (59 eps)
Olivia Munn
Phoebe Callisto (Voice) (59 eps)
Grey DeLisle
Stella / Queen Gemma / Misc. (voice) (59 eps)
Diedrich Bader
Admiral Crick / Misc. (Voice) (59 eps)
Danny Jacobs
Admiral Watson / Misc. (Voice) (59 eps)
Cullen McCarthy
Miles Callisto (Voice) (59 eps)
Ethan Wacker
Pip Whipley (voice) (8 eps)
Mark Hamill
Gadfly Garnett (voice) (6 eps)