| Name | Character | Episodes |
|---|---|---|
| Morgan Jones | Capt. Boggs | 58 |
| Christopher George | Sgt. Sam Troy | 58 |
| Eric Braeden | Capt. Hans Dietrich | 58 |
| Gary Raymond | Sgt. Jack Moffitt | 58 |
| Justin Tarr | Pvt. Tully Pettigrew | 58 |
| Lawrence P. Casey | Pvt. Mark Hitchcock | 58 |
| John Anderson | Major Indrus | 2 |
| Stanley Adams | El Gamil | 2 |
| Claudine Longet | Marianne Bertaine | 2 |
| Greg Mullavey | Lt. Connole | 1 |
| Walter Brooke | Capt. Vulcan | 1 |
| James Philbrook | Dr. Keller | 1 |
| Larry Ward | Colonel Quint | 1 |
| Matt Clark | Corporal Meekin | 1 |
| Karl Swenson | Colonel Seidner | 1 |
| Martin Milner | Sgt. Roberts | 1 |
| Warren Stevens | Sgt. Frank Griffin | 1 |
| John Anderson | Gen. Owen Lansbury | 1 |
| Vincent Gardenia | Colonel Centis | 1 |
| John Doucette | Joe Marston | 1 |
| Pippa Scott | Drucilla | 1 |
| Jack Jones | Mickey Roberts | 1 |
| Henry Wills | Second Arab | 1 |
| Norbert Meisel | Gunner | 1 |
| Norbert Meisel | Seaman Urban | 1 |
| Marc Lawrence | Abu Hassan | 1 |
| Wesley Addy | Colonel Leske | 1 |
| Don Knight | Capt. Seitel | 1 |
| Fabian | Cpl. Pennell | 1 |
| Bo Hopkins | Bo Randall | 1 |
| William Schallert | Dr. Schneidermann | 1 |
| Ed Asner | Captain Friedrich | 1 |
| Dick Sargent | Lt. Kemper | 1 |
| Salome Jens | Patricia Bauer | 1 |
| Richard Mulligan | Major Lansing | 1 |
| Bruce Glover | Lt. West | 1 |
| Alfred Ryder | Col. Gerschon | 1 |
| Abraham Sofaer | Marabout | 1 |
| Michael Pate | Sheik | 1 |
| Joe Turkel | Capt. Bruener | 1 |
| Fay Spain | Fay Morgan | 1 |
| Milton Selzer | Colonel Schweiger | 1 |
| Milton Selzer | Tobar | 1 |
| Norman Wooland | Moffitt's Father | 1 |
| Aldo Sambrell | Arab Chief | 1 |
| Ben Wright | Colonel Voss | 1 |
| Ben Wright | Col. Jameson | 1 |
| Albert Paulsen | Colonel Von Helbing | 1 |
| Albert Paulsen | Major von Brugge | 1 |
| Émile Genest | Mathias | 1 |
| William Jordan | Major Bruder | 1 |
| Harvey Jason | Perkins | 1 |
| Alan Caillou | Gen. Simms | 1 |
| Richard Davalos | Captain Wansee | 1 |
| Michael Tolan | Sgt. Kabir | 1 |
| Catlin Adams | Girl | 1 |
| Louise Sorel | Gabrielle | 1 |
| Darwin Joston | Pvt. Peterson | 1 |
| Philip Bruns | General Koenig, 'the Butcher' | 1 |
| Jack Colvin | Luden | 1 |
| Fabrizio Mioni | Lt. Cristalde | 1 |
| Wolfgang Preiss | General Von Helmreich | 1 |
| Hamilton Camp | Lt. Winters | 1 |
| Jack Bannon | Lt Koenig | 1 |
| Horst Ebersberg | Lt. Hardt | 1 |
| Austin Willis | Doctor Anderson | 1 |
| Susanne Cramer | Gerta | 1 |
| Gale Garnett | Safti | 1 |
| Michael Shillo | Gaspard | 1 |
| Richard Rust | Tex | 1 |
| Harry Landers | Colonel Reynolds | 1 |
| Michael Evans | Colonel Windsor | 1 |
| Charles Maxwell | Prochek | 1 |
| Ulla Strömstedt | Ilse Greuner | 1 |
| Carol Booth | Nurse Parker | 1 |
| Anna Strasberg | Marisha | 1 |
| Jay Novello | La Duc | 1 |
| Stanley Waxman | Colonel Luden | 1 |