Bruce Boxleitner

as Colin Barrow (voice)

Grey DeLisle

as Heather / Donna Fawkes (voice)

Jeff Bennett

as Leggio / Dobbs / Jackson (voice)

Jim Cummings

as Captain Mathius / Farum (voice)

Lia Sargent

as Jen Barrow (voice)

Nika Futterman

as Alissa Vincent (voice)

Maurice LaMarche

as White / Bavaro (voice)

Kelly Hu

as Shen (voice)

Phil Morris

as Hansen / Glenn (voice)

Bob Neill

as Cartusian (voice)

Jim Piddock

as Chic (voice)

Kevin Michael Richardson

as Samuel Irons / Pendleton / Miner (voice)

Hal Sparks

as Ramirez (voice)

Keith Szarabajka

as Dr. Kyne (voice)

David Zyler

as Walla (voice)

Kirk Baily

as Walla (voice)

Shelly O'Neill

as Walla (voice)