| Robert Culp | Kelly Robinson / ... (82 episodes, 1965-1968) |
| Bill Cosby | Alexander Scott (82 episodes, 1965-1968) |
| Kenneth Tobey | Russ Conway / ... (7 episodes, 1967-1968) |
| Arthur Batanides | Rocco / ... (5 episodes, 1966-1967) |
| France Nuyen | Sam McClean / ... (4 episodes, 1966-1967) |
| James Hong | Curator / ... (4 episodes, 1965-1967) |
| Larry Thor | Masters / ... (4 episodes, 1965-1968) |
| Sheldon Leonard | Disc Jockey / ... (4 episodes, 1965-1967) |
| Harold J. Stone | Zarkas (3 episodes, 1967) |
| Roger C. Carmel | Edwin Wade / ... (3 episodes, 1965-1967) |
| Mako | Jimmy / ... (3 episodes, 1965-1966) |
| Eleanor Sommers | Maria (3 episodes, 1966-1967) |
| Keith Andes | Troy Duncan / ... (3 episodes, 1967) |
| Roy Jenson | Abrams / ... (3 episodes, 1966-1968) |
| Stella Garcia | Kull / ... (3 episodes, 1966-1968) |
| Robert Patten | Agent Y / ... (3 episodes, 1967) |
| Allen Jung | Commander / ... (3 episodes, 1965-1967) |
| Tom Pace | Driver / ... (3 episodes, 1967) |
| Yuki Shimoda | Ishikura / ... (3 episodes, 1965-1966) |
| Larry Duran | Burnett / ... (3 episodes, 1965-1966) |
| Beulah Quo | Amah / ... (3 episodes, 1965-1967) |
| Nicholas Colasanto | Cabbie / ... (3 episodes, 1965-1966) |
| Michael Preece | Border Guard / ... (3 episodes, 1967-1968) |
| Paul Micale | Guard #2 / ... (3 episodes, 1966) |
| Charles Horvath | 2nd Guard / ... (3 episodes, 1966-1967) |
| Bob Herron | Mohammed / ... (3 episodes, 1966-1967) |
| Dane Clark | Jack Gannon / ... (2 episodes, 1966-1968) |
| Jack Kruschen | Aram Kanjarian / ... (2 episodes, 1966-1967) |
| Nehemiah Persoff | Coly Collisis / ... (2 episodes, 1966-1967) |
| Joey Heatherton | Katie (2 episodes, 1966) |
| Jeanette Nolan | Helen Robinson / ... (2 episodes, 1965-1966) |
| Cicely Tyson | Princess Amara / ... (2 episodes, 1965-1966) |
| Dan Tobin | Male Secretary / ... (2 episodes, 1966-1968) |
| Gabriele Ferzetti | Aldo (2 episodes, 1966) |
| Philip Ahn | Charlie Huan / ... (2 episodes, 1965-1967) |
| Jay Novello | Corday / ... (2 episodes, 1965-1966) |
| Lou Krugman | Hidalgo / ... (2 episodes, 1966-1967) |
| Marino Masé | Miklos / ... (2 episodes, 1967-1968) |
| Alan Oppenheimer | Colonel Benkovsky (2 episodes, 1966-1967) |
| Antoinette Bower | Shelby Clavell (2 episodes, 1966) |
| Richard Bull | Blaine / ... (2 episodes, 1966) |
| Michael Conrad | Dinat / ... (2 episodes, 1965-1966) |
| Fuji | Ko / ... (2 episodes, 1965) |
| H.T. Tsiang | Jimmy's Father / ... (2 episodes, 1965) |
| Mario Badolati | Bonfiglio (2 episodes, 1966) |
| Michael Constantine | Col. Halouf / ... (2 episodes, 1966) |
| David Mauro | Angelo / ... (2 episodes, 1966) |
| Diahn Williams | Cathy / ... (2 episodes, 1967-1968) |
| Dale Ishimoto | Capt. Shimatsu / ... (2 episodes, 1965-1966) |
| David Bond | Antonio / ... (2 episodes, 1966-1967) |
| Martin Garralaga | Brother Juan / ... (2 episodes, 1966-1967) |
| Victor Sen Yung | Haan / ... (2 episodes, 1965-1968) |
| Joseph Kim | Gen. Chu / ... (2 episodes, 1965-1966) |
| Edward Colmans | Dr. Jalis / ... (2 episodes, 1966-1968) |
| Ed Parker | Rico / ... (2 episodes, 1966-1967) |
| Steve Peck | Martini (2 episodes, 1966) |
| James Seay | Salesman / ... (2 episodes, 1967) |
| Robert Donner | Dr. Bustard / ... (2 episodes, 1965-1968) |
| Steve Gravers | Capt. Richards / ... (2 episodes, 1965-1966) |
| Lee Kolima | Ganko / ... (2 episodes, 1965-1966) |
| David Sheiner | Turkey / ... (2 episodes, 1965-1966) |
| David Friedkin | Marine Lieutenant / ... (2 episodes, 1965) |
| David Renard | Clerk / ... (2 episodes, 1966) |
| Kam Tong | Kung / ... (2 episodes, 1965-1967) |
| George Matsui | Kozo / ... (2 episodes, 1965-1966) |
| Rodolfo Hoyos Jr. | Beltran / ... (2 episodes, 1966-1968) |
| Arnold Lessing | Bartender / ... (2 episodes, 1966-1968) |
| Bob Kline | Clerk / ... (2 episodes, 1967-1968) |
| Steve Mitchell | Deputy #1 / ... (2 episodes, 1967-1968) |
| Soon-Tek Oh | Announcer / ... (2 episodes, 1965) |
| James Best | Sam / ... (2 episodes, 1966-1968) |
| Sammy Reese | Langdon / ... (2 episodes, 1966-1967) |
| Joe Lo Presti | Giovanni (2 episodes, 1966) |
| William Henry | Colonel Shay / ... (2 episodes, 1967-1968) |
| Nancy Hsueh | Girl / ... (2 episodes, 1965-1966) |
| Joan Swift | Girl / ... (2 episodes, 1965-1966) |
| John Goddard | Donald Forman / ... (2 episodes, 1966-1967) |
| Rico Cattani | Guard #1 (2 episodes, 1966) |
| Giuseppe Paganelli | The One Above / ... (2 episodes, 1967) |
| David Chow | Mr. Kurimachi / ... (2 episodes, 1965) |
| Victor Eberg | Mexican Artist / ... (2 episodes, 1966-1968) |
| Jack Denbo | Agent #1 / ... (2 episodes, 1966-1967) |
| Charlene Jones | Judy / ... (2 episodes, 1966-1967) |
| Nancy Wong | Barbara / ... (2 episodes, 1965) |
| George Takei | Ito / ... (2 episodes, 1965-1966) |
| Raynum K. Tsukamoto | Lou Wai / ... (2 episodes, 1965) |
| Harold Fong | Driver #2 / ... (2 episodes, 1965-1966) |
| Andy Anza | 2nd Porter / ... (2 episodes, 1966-1967) |
| Hans William Lee | Aide / ... (2 episodes, 1965) |
| Alberto Monte | Conductor / ... (2 episodes, 1966-1967) |
| Fred Carson | Cantina Tough / ... (2 episodes, 1966-1967) |
| Fabian Dean | Chef (2 episodes, 1966) |
| Domenick Delgarde | Policeman (2 episodes, 1966) |
| Louie Elias | Guard / ... (2 episodes, 1966-1967) |
