Tom Amandes

as Vic Campbell (2 episodes)

as O.M. Honeycroft (7 episodes)

as Judge Durkin (5 episodes)

as Luke (1 episode)

as Bruce Bronstein (1 episode)

as Dr. Baker

as Davis Wilkes

as Gerald Dixon

as Mark Felt ("Deep Throat") (1 episode)

as Daniel Quinn (3 episodes)

as Richard (1 episode)

as Abraham Lincoln

as Bernard (1 episode)

as Noah Kuttler / The Calculator (5 episodes)

as Ryan Wheeler (3 episodes), as Wheeler (1 episode)

as Mr. Harkin (1 episode)

as Samuel Reston (7 episodes)

Director

as Lawrence Stamberg (2 episodes)

as Jonathan

as Mitch Rhinehart (1 episode)

as Dr. Kalfuss (1 episode)

as Dr. Pelikan (11 episodes)

as Don Branford (2 episodes)