Winchell (1 episode, 2000)
Additional Voices / ... 2 episodes, 1996
Charles Baxter (1 episode, 1994)
Lawrence Carson (4 episodes, 1993-1994)
Ralph Offenhouse (1 episode, 1988)
C.C. Capwell (28 episodes, 1984)
Dr. Lyman (2 episodes, 1985-1988)
Dr. Klaus Bergstrom / ... (2 episodes, 1984-1985)
Andrew Laird (27 episodes, 1981-1984)
Col. Briggs / ... (2 episodes, 1980)
Arthur Horton / ... (2 episodes, 1981-1982)
Ellis Jordan (1 episode, 1981)
Sam Ullman / ... (3 episodes, 1978-1980)
Atamien (1 episode, 1979)
Avery Schiller (1 episode, 1979)
Dr. Crippin (1 episode, 1978)
Dr. Walter Ellis (1 episode, 1978)
Jim Redmon / ... (2 episodes, 1974-1976)
Abbott / ... 3 episodes, 1974-1976
Lt. Vincent Bondini (1 episode, 1973)
Duke Paige (23 episodes, 1971-1972)
Peter B. Clifford (as Mark Richman)
Captain Dettmer / ... (2 episodes, 1970-1974)
Anton Vich / ... (2 episodes, 1968-1969)
Latimer / ... (2 episodes, 1968-1969)
Dr. March (Adamsville) (в титрах отсутствует)
Andrew Hatcher / ... (2 episodes, 1967-1968)
Daryll Frazer / ... (2 episodes, 1967-1974)
Dr. Hargreaves / ... (3 episodes, 1970-1972)
Adam Chance (as Mark Richman)
Hammond / ... (8 episodes, 1965-1974)
Robert Vandenburg (как Mark Richman)
Deputy Steel / ... (2 episodes, 1964-1966)
Jefferson Rome / ... (2 episodes, 1963-1965)
Al Keets / ... (4 episodes, 1963-1971)
Nick Cain (as Mark Richman)
Trooper Robert Franklin (1 episode, 1964)
Police Lt. Bill Hanley (как Mark Richman)
Cadet Col. Laurie Lorger (как Mark Richman)
Gardner 'Gard' Jordan (как Mark Richman)
Mike / ... (2 episodes, 1958-1960)
John West / ... (5 episodes, 1956-1962)
Cadet Colonel Corger (хроника) (в титрах отсутствует)
Ralph Offenhouse (хроника) (в титрах отсутствует)