Name	Known for
Ed Kemmer Cmdr. Buzz Corry Cmdr. Buzz Corry See fewer	The Spider (1958)
Lyn Osborn Cadet Happy Cadet Happy See fewer	Space Patrol (1950)
Ken Mayer Maj. Robbie Robertson Maj. Robbie Robertson See fewer	Little Big Man (1970)
Nina Bara Tonga Tonga See fewer	Space Patrol (1950)
Rudolph Anders Dr. Van Meter Dr. Van Meter See fewer	The Great Dictator (1940)
Bill Bryar Guard Guard See fewer	Space Patrol (1950)
Gabriel Curtiz Dr. Malengro Dr. Malengro See fewer	Death of a Scoundrel (1956)
Glen Denning Commander Kit Corry (as Glenn Denning) Commander Kit Corry (as Glenn Denning) See fewer	Space Patrol (1950)
Richard Devon Molock Molock See fewer	Magnum Force (1973)
Hal Forrest Sercretary General Edward Carlisle Sercretary General Edward Carlisle See fewer	Mystery Plane (1939)
Harold Gordon Dr. Maddox Dr. Maddox See fewer	East of Eden (1955)
Virginia Hewitt Carol Carlisle Carol Carlisle See fewer	The Flying Saucer (1950)
Norman Jolley Agent X Agent X See fewer	Chris Welkin Planeteer
William Justine Guard (as Bill Justine) Guard (as Bill Justine) See fewer	Space Patrol (1950)
Richard Karlan Captain Dagger Captain Dagger See fewer	Tangier Incident (1953)
Bela Kovacs Prince Baccaratti Prince Baccaratti See fewer	Space Patrol (1950)
Jack McHugh Major Sova Major Sova See fewer	Stick to Your Story (1926)
Marvin Miller Mr. Proteus Mr. Proteus See fewer	The Millionaire (1955)