John Tracy, Deborah, Duchess of Royston / Brophy / Fireflash Co-Pilot / Percy's Friend (voice), Colonel Harris / Colonel Benson (voice), Dr. Orchard (voice), Jansen (voice), Atom Sub Reefer Captain / TV Reporter (voice)
59 episodes
Alan Tracy (voice), Hector McGill (voice), Lieutenant Jensen (voice), Atom Sub Reefer Lieutenant (voice), Franklin / Gutierrez (voice), 2nd Croupier / Hendricks (voice), TV Reporter (voice), Banino / Macklin / Foreign Lieutenant (voice), Press Officer / 2nd Reporter (voice)
40 episodes
Gordon Tracy / Brains (voice), Parker / Wilbur EDandridge III / Captain Hanson (voice)
33 episodes
6 episodes
Maxie / Scheiler / Foreign Colonel (voice) (uncredited), Various Characters (voice) (uncredited), Frank Hooper / Sir Harry (voice) (uncredited), Blackmer (voice) (uncredited), Solarnaut Camp (voice) (uncredited), McColl / Security Guard (voice) (uncredited)
6 episodes
3 episodes
