| CAST | CONNECTIONS | |
|---|---|---|
| Peter Graves | Jeffrey Knight | » [K13] SST DEATH FLIGHT » [418] ATTACK OF THE THE EYE CREATURES » [517] THE BEGINNING OF THE END » [311] IT CONQUERED THE WORLD |
| Rick DiAngelo | Guide #1 | |
| Eugene Robert Glazer | Guide #2 | |
| Eileen Dietz | Dana | |
| Paulette Breen | Lena | |
| Tim Donnelly | Richard Knight Jr. (as Timothy... | |
| Frank Ashmore | George Walker | |
| Keith Langsdale | Guide #3 | |
| Dick Sargent | Dr. Jameson | |
| Zale Kessler | Dr. Nelson | |
| Larry Manning | Guide #4 | |
| William Bufkin | Clone | |
| Tony Haig | Jack | |
| Boyd Holister | Senator | |
| Eddie Carroll | Doctor (as Eddy Carroll) | |
| John Donovan | Guide #5 | |
| Greg Brickman | Motorcycle rider | |
| Keenan Wynn | Jake Noble | » [706] LASERBLAST |
| Lurene Tuttle | Anna Noble | » [112] UNTAMED YOUTH |
| James Mantell | Ricky Knight | |
| David Hooks | Prof. Richard P. Knight | |
| Joel Lawrence | Guide #6 | |
| George P. Wilbur | Walker man | |
| Chuck Hayward | Walker man | |
| Amanda Davies | Reporter Grady | |
| Frank Birney | Reporter Birney | |
| Robert S. Fiveson | Security Guard (uncredited) | |