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)