Mikey Kelley as the voice of David Carter
Edward Albert as the voice of Rafe
Tony Jay as the voice of Dragit
Leonard Nimoy as the voice of Colonel Konrad
Jim Cummings as the voice of Major Lomack
Ronny Cox as the voice of Doc
Kath Soucie as the voice of Sonia
Thom Adcox as the voice of Simon
Lorenzo Lamas as the voice of Cale Oosha
Kristy McNichol as the voice of Angie
Rider Strong as the voice of Jim
James B. Sikking as the voice of Colonel Gorden
Greg Eagles as the voice of Major Stark