Buster Crabbe — The Movie Database (TMDB)

Clarence Linden "Buster" Crabbe was an American athlete and actor, who starred in a number of popular screen serials in the 1930s and 1940s.

Leif Erickson — The Movie Database (TMDB)

The Contender (1944) - IMDb

Wild Horse Phantom (1944) — The Movie Database (TMDB)

Buster Crabbe - IMDb

Buster Crabbe - IMDb

Mars Attacks the World (1938) - IMDb

Flash Gordon's Trip to Mars (1938) - IMDb

The Bounty Killer (1965) — The Movie Database (TMDB)

Buck Rogers (1939) - IMDb