Karl T. Wright

as Dr. Kessler (2 episodes)

as Walter Robins

as Mr. Chisenhall (1 episode)

as Troy Hudson

as Man at LAPD station (1 episode)

as Lewis Stephens

as Professor Hawkins

as Andrew Davis (1 episode)

as Declan Smart (1 episode)

as Chuck (8 episodes)

as Doctor (1 episode)

as Doctor (1 episode)

as Doctor Gabriel (1 episode)

as Seth Chapman (1 episode)

as Mr. Baird (1 episode)

as Bradford Wilkins (2 episodes)

as David Masters (2 episodes)

as Professor Heinz (1 episode)

as Professor Wright

as Cop (1 episode)

as Dr. Cooper (1 episode)

as Dr. Patrick Newman (1 episode)

as Dr. Benson

as Tennis Instructor (1 episode)