Trailer
Images
 | Harry Townes as Jim Benedict |
 | John Agar as Col. Matthews |
 | Whitney Blake as June |
 | Cecil Kellaway as Dr. A.A. Andrews |
 | Charles Aidman as Dave |
 | Gail Kobe as Kim |
 | Edward Platt as Dr. Easton |
 | William Traylor as Space Ship Crew |
 | John Clarke as Space Ship Crew |
| Joel Lawrence as Space Ship Crew |
 | Jon Lormer as Prof. Logan |
 | Robert Cornthwaite as Sen. Royce |
 | Sam Edwards as Technician (uncredited) |
 | Frank Gerstle as Member of Senate Investigating Committee (uncredited) |
 | Biff McGuire as Technician (uncredited) |
| Ed Prentiss as Mr. Duffy (uncredited) |
 | Bert Remsen as Technician (uncredited) |
| Directing | |
| Joseph Pevney | Director |
Writing | |
| Alford Van Ronkel | Writer |
Production | |
| Alford Van Ronkel | Producer |
Sound | |
| Van Cleave | Music |
Crew | |
| Loyal Griggs | Cinematography |
Editing | |
| Jerry Webb | Editor |
Art | |
| Albert Nozaki | Art Direction |
| Hal Pereira | Art Direction |
| Sam Comer | Set Decoration |
| Ray Moyer | Set Decoration |
Costume & Make-Up | |
| Wally Westmore | Makeup Supervisor |
Directing | |
| Richard Caffey | Assistant Director |
Sound | |
| Lyle Figland | Sound |
| Winston H. Leverett | Sound |
Production | |
| James A. Schulke | Supervising Producer |
