After an asteroid draws an astronaut and his ship to its surface, he is miniaturized by the phantom planet's exotic atmosphere.
Dean Fredericks
as Captain Frank Chapman
Coleen Gray
as Liara
Anthony Dexter
as Herron
Dolores Faith
as Zetha
Francis X. Bushman
as Sessom
Richard Weber
as Lt. Ray Makonnen
Al Jarvis
as Judge Eden
Dick Haynes
as Col. Lansfield
Earl McDaniel
as Capt. Leonard
Mike Marshall
as Lt. White
John Herrin
as Captain Beecher
Mel Curtis
as Lt. Cutler
