as Virgil Tracy / Dick O'Shea / Cravitz (voice)
as Captain Ochre / Andre Verdain / Major Gravener (voice)
as Self
as James Nolan
as Dr. Melplash
as Albert Bitterling
as Dev Tarrant
as Doctor(1 ep)
as Fordham(1 ep)
as Virgil Tracy / Cravitz (voice)
as Gidney(3 eps)
as Virgil Tracy / Operator Power / Tom (voice)
as Captain Ocher / Angelini / Control / Shroeder / Kurnitz / Human Captain Black (voice)
as General / Officer / Lieutenant / Tanker / Hunter 2 / B107 Co-Pilot Hal / 2nd Russian (voice)
as Captain Ochre / Jackson / Human Captain Black / Various Characters (voice)
as Artillery Officer
as Dev Tarrant(1 ep)
as Dr. Tulliver(1 ep)
as Richards(1 ep)
as Eric Mackay(1 ep)
as Insp. Lars Bergen(1 ep)
as DS William Peel(1 ep)
as Army Captain
as Geoff
as Gordon Maxwell(7 eps)
as Skydiver Navigator Lt. Gordon Maxwell(1 ep)
as The Bishop / Mullins (voice)
as The Bishop / Patterson / Policeman / Healey Automation Guard (voice)
as The Bishop / Various Characters (voice)(13 eps)
as Ralph Clayton (voice)(3 eps)
as Virgil Tracy / Hogarth (voice)
as Human Captain Black / Delta Garage Attendant / Radio Announcer (voice)(1 ep)
as Captain Ochre / Director General Xian Yoh / Director General's Double (voice)(1 ep)
as Captain Ochre / 3rd Policeman / 5th Policeman / Radio Announcer (voice)(1 ep)
as Captain Ochre / Guard 2 (voice)(1 ep)
as Lieutenant Burroughs / Radio Announcer (voice)(1 ep)
as Pilot (voice)(1 ep)
as Morton / Distillery Attendant (voice)(1 ep)
as Captain Ochre / 2nd Medical Student / Radiographer (voice)(1 ep)
as Dr. Giadello (voice)(1 ep)
as Captain Ochre / Barman (voice)(1 ep)
as Captain Ochre / Lookout Warden (voice)(1 ep)
as Control (voice)(1 ep)
as Colonel Storm / Robot (voice)(1 ep)
as Andre Verdain / Commissionaire (voice)(1 ep)
as Jackson (voice)(1 ep)
as Captain / Security Man (voice)(1 ep)
as Shroeder (voice)(1 ep)
as Angelini (voice)(1 ep)
as Captain Ochre / Dr. Kurnitz / Human Captain Black (voice)(1 ep)
as Kinley (voice)(1 ep)
as Major Gravener (voice)(1 ep)
as Captain Ochre / Reporter Harry (voice)(1 ep)
as Dr. Denton / Spectrum, New York (voice)(1 ep)
as Rhodes (voice)(1 ep)
as Dr. Sommers (voice)(1 ep)
as Captain Ochre / Tribune Control Operator (voice)(1 ep)
as Captain Ochre (voice)(3 eps)
as Senior Cadet Joe Johnson (voice)(1 ep)
as 3rd Policeman / Shroeder (voice)(1 ep)
as Manny
as Virgil Tracy / Dr. Pringle / Saunders / TV Reporter / 1st Santa (voice)
as Virgil Tracy / Space Exploration Center President (voice)
as Virgil Tracy / Power / DJ Tom (voice)
as Virgil Tracy / Senor Faccini (voice)
as Virgil Tracy / Mason / D103 Pilot / 1st Reporter (voice)
as Virgil Tracy / Peterson (voice)
as Virgil Tracy / Dick O'Shea / Cravitz (voice)
as Virgil Tracy (voice)(6 eps)
as Clifford Marshall(1 ep)
as Drew Heriot(11 eps)
as Inspector Ronet
as Kellman(3 eps)
as Captain Andrew Lamont, MC(1 ep)
as Tom Pocock(1 ep)
as Andrey(1 ep)
as Freddie(1 ep)
as Harry Pilbeam(1 ep)