| Wendell Corey | ... | Adm. David King | |
| Keith Larsen | ... | Cmdr. Scott | |
| John Agar | ... | Dr. Farrell | |
| Paul Gilbert | ... | Lt. Red Bradley | |
| Merry Anders | ... | Lt. Karen Lamont | |
| Irene Tsu | ... | Linda | |
| Robert Ito | ... | Tang (as Roberto Ito) | |
| Stuart Margolin | ... | Chief | |
| Todd Lasswell | ... | Lt. Charles Anderson, Tang's Father (as Todd Laswell) | |
| Kam Tong | ... | Jung | |
| Ron Stokes | ... | Sgt. Allen | |
| Adam Roarke | ... | Harris | |
| Paul Hampton | ... | Wilson | |
| Ronald Lyon | ... | Sgt. Nevins (as Ron Lyon) | |
| Sally Frei | ... | Sally | |
| Suzie Kaye | ... | Ens. Stevens | |
| Hans Wedemeyer | ... | Jang | |
| Glenn Langan | ... | Capt. Ross | |
| Anthony Lee | ... | Navigation Officer (as Lee Anthony) | |
| Joyce Carol | ... | Centaurian Girl on Ship | |
| Jamie McRae | ... | Sgt. Long (as Jamie Mc Rae) | |
| Joanne Miya | ... | Zenda, Tang's Mother |
Directed by | |||
| Arthur C. Pierce | |||
Writing credits(in alphabetical order) | ||
| Arthur C. Pierce | ||
Produced by | |||
| Jack Broder | .... | executive producer | |
| Madelynn Broder | .... | executive producer | |
| George Edwards | .... | producer | |
Cinematography by | |||
| Archie R. Dalzell | (as Archie Dalzell) | ||
Film Editing by | |||
| George White | |||
Art Direction by | |||
| Paul Sylos | |||
Set Decoration by | |||
| Harry Reif | |||
Costume Design by | |||
| Frank Tauss | |||
Makeup Department | |||
| Ted Coodley | .... | makeup artist | |
| Myrl Stoltz | .... | hair stylist (as Merle Stoltz) | |
Production Management | |||
| Jack Voglin | .... | production manager | |
Second Unit Director or Assistant Director | |||
| Richard Dixon | .... | assistant director | |
Art Department | |||
| Ted Cooper | .... | property master | |
Sound Department | |||
| Larry Gannon | .... | sound mixer | |
| Del Harris | .... | sound effects editor | |
Special Effects by | |||
| Joe Zomar | .... | special effects (as Joseph Zomar) | |
Casting Department | |||
| Marvin Paige | .... | casting consultant | |
Editorial Department | |||
| George White | .... | supervising editor | |
Music Department | |||
| Igo Kantor | .... | music editor | |
| Del White | .... | music editor | |
| Gordon Zahler | .... | music | |
| Hans J. Salter | .... | composer: stock music (uncredited) | |
| Leith Stevens | .... | composer: stock music (uncredited) | |
Other crew | |||
| Stanley Olsen | .... | script supervisor | |
| Full cast and crew | Company credits | External reviews |
| IMDb Sci-Fi section | IMDb USA section |
Yes, there are really no prehistoric women to speak of, a few prehistoric guys that don't really figure into the plot much at all, and to top it off the opening scenes are very confusing as it took me a bit to figure out there were two ships. This movie was also very boring and even mst3000 couldn't help it as it made for one of the more boring episodes of that show I had ever seen. The only reason I gave it a two is that there was at least a very attractive female character to look at among the dismal sets and stupid prehistoric monsters. Which consisted of a lizard and a normal sized snake...oh the horrors. But I should at least give a bit of the plot of this dull film. Space cruiser one has this crew on it and then it shifts to ship two which was the confusing point to me. However, I soon figure out one of the ships is being taken over by these people and they cause it to crash on a the prehistoric planet that does not contain all that many women and the second ship comes to the rescue. That is about all there is to it, granted there is a revelation at the end which is moronic at best, however I won't ruin it for anyone who may be brave enough to sit through this mess...even the beautiful Linda character is not enough reason to watch it for most people.