- Don Hastings
- Â The Video Ranger / ... 135 episodes, 1949-1955
- Al Hodge
- Â Captain Video / ... 128 episodes, 1950-1955
- Hal Conklin
- Â Dr. Pauli 101 episodes, 1949-1955
- Ben Lackland
- Â Commissioner of Public Safety Charles Carey 85 episodes, 1951-1955
- Ed Condit
- Â Announcer / ... 54 episodes, 1951-1955
- Fred Scott
- Â Communications Officer Rogers / ... 44 episodes, 1949-1955
- Ed Holmes
- Â Tucker, a mechanic for the Galaxy / ... 23 episodes, 1954-1955
- Grant Sullivan
- Â Prince Spartak / ... 12 episodes, 1953-1955
- Ernest Borgnine
- Â Nargola 12 episodes, 1951
- Harry Landers
- Â Ateel / ... 9 episodes, 1951
- Arnold Stang
- Â Clumsy McGee 10 episodes, 1951
- Jack Orrison
- Â Commissioner of Public Safety Bell 8 episodes, 1949-1951
- Stewart Bradley
- Â Cochran 8 episodes, 1954-1955
- Richard Coogan
- Â Captain Video 7 episodes, 1949-1950
- Dave Ballard
- Â Tobor 7 episodes, 1953-1955
- Arny Freeman
- Â Horace 6 episodes, 1952-1954
- LeRoi Operti
- Â Dennis Flood 6 episodes, 1952-1954
- Mary Vallee
- Â Luna McCrorrie 6 episodes, 1952
- Stephen Elliott
- Â Dr. Pauli 6 episodes, 1954-1955
- Billy M. Greene
- Â Skrag 5 episodes, 1953
- Tom McDermott
- Â Permes Lykos / ... 4 episodes, 1949-1955
- Ray Boyle
- Â Luny O'Brien 4 episodes, 1952-1954
- Reynolds Evans
- Â Count Callisto 4 episodes, 1952
- Rusty Lane
- Â Porphory Pete 3 episodes, 1952
- George Cotton
- Â Mac 3 episodes, 1953
- Bernard Kates
- Â Philips, Agent of Pharol 3 episodes, 1954-1955
- Bruce Hall
- Â McRorrity 2 episodes, 1953-1954
- Dick Gander
- Â Joe Gentry 2 episodes, 1953
- Bob Hastings
- Â The Video Ranger's brother 2 episodes, 1954
- Georgann Johnson
- Â Princess Arura 1 episode, 1953
- Gerrianne Raphael
- Â Ranger Rhoda Craig 1 episode, 1953
- John Connell
- Â Ranger 1 episode, 1949
- Bob Pfeiffer
- Â Announcer 1 episode, 1949
- Alan Hale Jr.
- Â Gallegher 1 episode, 1950
- Henry Norell
- Â Su Ching Sing 1 episode, 1950
- Natalie Core
- Â Queen Karola 1 episode, 1951
- Kem Dibbs
- Â Captain Geral 1 episode, 1951
- Nat Polen
- Â Maha of Eos 1 episode, 1951
- John Martin
- Â Asbek of Jupiter 1 episode, 1951
- Walter Black
- Â Kaan of Mars 1 episode, 1951
- Chet Stratton
- Â Amos the Mastermind / ... 1 episode, 1952
- Ruth White
- Â Mrs. Bullfinch 1 episode, 1952
- Gloria Stroock
- Â Vially 1 episode, 1952
- Jack Davis
- Â Sam Screed 1 episode, 1952
- Gordon Mills
- Â Randolph 1 episode, 1952
- Charles Mendick
- Â Lisbon Charley 1 episode, 1952
- Bob Downing
- Â George T. Claridge 1 episode, 1952
- Scott Tennyson
- Â Chauncey Everett 1 episode, 1952
- Rebecca Welles
- Â Arda, the young space-dweller 1 episode, 1953
- Earl Hammond
- Â Ranger Forbes 1 episode, 1954
- Kenneth Nelson
- Â Ranger Colt 1 episode, 1954
- Mona Kent
- Â The Video Ranger's mother 1 episode, 1954
- Donald Briggs
- Â Tor 1 episode, 1955
- John Shay
- Â Murgo, Agent of Pharol 1 episode, 1955
- Elaine Williams
- Â Moy Sing (1949) unknown episodes
- Gary Wright
- Â (1950) unknown episodes
- Wright King
- Â Midshipman Bascomb unknown episodes
- David Lewis
- Â Lieutenant Cromwell unknown episodes
- Jim Boles
- Â Tarac unknown episodes
- Anthony Spinelli
- Â Ensign Tubbs unknown episodes
- Joan Alexander
- Â Lyra unknown episodes
- Mona Bruns
- Â Mother of Video Ranger and Hal unknown episodes
- Stuart Bradley
- Â Cochran unknown episodes
- Malcolm Lee Beggs
- Â Diamonds unknown episodes
- Cliff Dunstan
- Â McGovern unknown episodes
- John Martin
- Â Asbek unknown episodes
- Richard Kent
- Â Lieutenant unknown episodes
- Wil Schultz
- Â Henry unknown episodes
- Laura Weber
- Â Mara unknown episodes
- Carl King
- Â Lieutenant Bailey unknown episodes
- Dickie Moore
- Â Jeff (uncredited) unknown episodes
- Barbara Ames
- (uncredited) unknown episodes
