Robert H. Harris

as Jacob Adler

as Dr. Weisburger

as Brenner (1 episode)

as Wilcox

as Ben Beigelman

as Dr. Ellins

as Uncle Tojar (1 episode)

as Henry Bellamy

as J. P. Malloy (1 episode)

as Hastings (1 episode), as Dr. Stanley Frederickson (1 episode)

as Dobie

as Daniel Maitland (1 episode)

as Hoyt Taylor

as Dr. Broden

as Nick Dunbar (1 episode)

as Steven Rydell (1 episode)

as Dr. Janos Hradny (1 episode), as Mark Olé (1 episode)

as Otto Anhalt (1 episode)

as Officer Newman

as Aratoon Kebabian