Brennan Brown

as Phineas Gold (2 episodes)

as Bobby Kirkland

as Harold

as Commander Joseph Rochefort

as Hans

as Steve Perry (1 episode)

as Dr. Sam Abrams (45 episodes)

as Horst

as Robert Childan (34 episodes)

as Congressman Larry Ames (1 episode)

as Edward Biben (8 episodes)

as Dr. Sam Abrams (1 episode)

as Dr. Nikolaus Vogel (1 episode)

as Tom - Detective (1 episode)

as Mr. Lavage

as Rich (9 episodes)

as Kevin Elspeth (1 episode)

as Nicholas Donnelly (9 episodes)

as Greg Raymond

as Larry Bukheim

as Robert Hortense (1 episode)

as Andrew

as Robert Treat Paine (2 episodes)

as US Attorney (1 episode)

as Mr. Smith (1 episode)