| Gil Gerard | .... | Capt. William "Buck" Rogers |
| Erin Gray | .... | Col. Wilma Deering |
| Tim O'Connor | .... | Dr. Elias Huer |
| Gary Coleman | .... | Hieronymous Fox |
| Patty Maloney | .... | Twiki |
| Mel Blanc | .... | Twiki (voice) |
| Ana Alicia | .... | Falina Redding (archive footage) (uncredited) |
| Elizabeth Allen Rosenbaum | .... | Roxanne Trent (archive footage) (uncredited) |
| Michael Ansara | .... | Kane #2 (archive footage) (uncredited) |
| Victor Argo | .... | Argus (archive footage) (uncredited) |
| Kimberly Beck | .... | Allison Michaels (archive footage) (uncredited) |
| Tara Buckman | .... | Majel (archive footage) (uncredited) |
| Karen Carlson | .... | Stella Warden (archive footage) (uncredited) |
| Juanin Clay | .... | Major Marla Landers (archive footage) (uncredited) |
| William Conrad | .... | Narrator (uncredited, voice) |
| Buster Crabbe | .... | Brigadier Gordon (archive footage) (uncredited) |
| Jamie Lee Curtis | .... | Jen Burton (archive footage) (uncredited) |
| Nancy DeCarl | .... | Sherese (archive footage) (uncredited) |
| Michael DeLano | .... | Malary Pantera (archive footage) (uncredited) |
| Sheila Wills | .... | Major Fields (archive footage) (uncredited) |
| Robert Dowdell | .... | Galen (archive footage) (uncredited) |
| Ann Dusenberry | .... | Ariela (archive footage) (uncredited) |
| Eddie Firestone | .... | Corporal M.K. Schultz (archive footage) (uncredited) |
| Lester Fletcher | .... | M.D. Toman (archive footage) (uncredited) |
| Sean Garrison | .... | Flight Controller (archive footage) (uncredited) |
| Frank Gorshin | .... | Seton Kellogg (archive footage) (uncredited) |
| Peter Graves | .... | Noah Cooper (archive footage) (uncredited) |
| H. B. Haggerty | .... | Tigerman (archive footage) (uncredited) |
| Pamela Hensley | .... | Princess Ardala (archive footage) (uncredited) |
| Walter Hunter | .... | Hugo (archive footage) (uncredited) |
| Anthony James | .... | Varek (archive footage) (uncredited) |
| Richard Lynch | .... | Velosi (archive footage) (uncredited) |
| Leigh McCloskey | .... | Jay (archive footage) (uncredited) |
| Trisha Noble | .... | Sabrina (archive footage) (uncredited) |
| Jack Palance | .... | Kaleel (archive footage) (uncredited) |
| Albert Popwell | .... | Koren (archive footage) (uncredited) |
| John Quade | .... | Jolen Quince (archive footage) (uncredited) |
| Robert Quarry | .... | Commander Corliss (archive footage) (uncredited) |
| Jay Robinson | .... | Cassius Thorne (archive footage) (uncredited) |
| Melody Rogers | .... | Lt. Dia Cyrton (archive footage) (uncredited) |
| Eric Server | .... | Dr. Theopolis (uncredited, voice) |
| Pamela Susan Shoop | .... | Tangie (archive footage) (uncredited) |
| Teddi Siddall | .... | Linea (archive footage) (uncredited) |
| Felix Silla | .... | Twiki (archive footage) (uncredited) |
| K. T. Stevens | .... | Harriett Twain (archive footage) (uncredited) |
| Dorothy Stratten | .... | Miss Cosmos (archive footage) (uncredited) |
| Woody Strode | .... | Big Red (archive footage) (uncredited) |
| Dan Sturkie | .... | Eli Twain (archive footage) (uncredited) |
| Ray Walston | .... | Roderick Zale (archive footage) (uncredited) |
| Katherine Wiberg | .... | Alicia (archive footage) (uncredited) |
| Joseph Wiseman | .... | Morphus (archive footage) (uncredited) |