Norman Ackerman (1 episode, 1991)
Lt. Alan Terwilliger / ... (3 episodes, 1987-1994)
Dr. Peter Allender (2 episodes, 1977)
Gil Spender / ... (3 episodes, 1972-1975)
Dan Whitfield (3 episodes, 1971-1975)
Dr. Larry Crown / ... (2 episodes, 1972-1974)
Dr. Norman Forest (2 episodes, 1968)
Ismet El Kabir / ... (3 episodes, 1968-1970)
Nikolai Alexeyvich Chulkaturin
Ben Heath / ... (5 episodes, 1968-1974)
Antonio / ... (2 episodes, 1962-1963)
Det. Alan Keller / ... (3 episodes, 1958-1962)
Antonio (в титрах отсутствует)
James (Duke) Malloy (как Lawrence Tolan)
Mort Springer (as Lawrence Tolan)
Leo Daly (as Lawrence Tolan)
Vincent Korvac (в титрах отсутствует)
Dr. James Altman / ... (2 episodes, 1961-1962)