Cast
Ronnie Stevens
Slim / Husky / Prof. Haggarty (voice) • 39 episodes
Dick Vosburgh
Capt. Larry Dart (voice) • 39 episodes
Murray Kash
Col. Raeburn (voice) • 39 episodes
Libby Morris
Marla (voice) • 39 episodes
Ysanne Churchman
Marla / Cassiopeia (voice) • 13 episodes
