Freddie Prinze Jr.

as James Vega (voice)

Monica Rial

as Treeya (voice)

Todd Haberkorn

as Milque (voice)

Vic Mignogna

as Messner (voice)

Eric Vale

as Essex (voice)

Jessie James Grelle

as Nicky (voice)

Laura Bailey

as Kamille (voice)

Marc Swint

as Mason (voice)

Justin Cook

as Brood (voice)

Travis Willingham

as Captain Toni (voice)

Bruce Carey

as Admiral Steven Hackett (voice)

Patrick Seitz

as Captain David Anderson (voice)

Kara Edwards

as Christine (voice)

Jad Saxton

as April (voice)

Jason Douglas

as Archuk (voice)

Jamie Marchi

as Dr. Liara T'Soni (voice)