Bartlett Robinson

as Mr. Gibbons

as Colonel #1 (archive footage)

as Oscar the Butler

as Jacob Bauman (2 episodes), as Dutch Van Deusen (1 episode)

as Dr. Orva

as Max (1 episode)

as Hayden (2 episodes)

as Minister (1 episode)

as Head of Military Academy (1 episode)

as Professor

as Munsey (uncredited)

as Albert Woodson (2 episodes)

as Larkin

as Doctor (uncredited)

as Rhodes

as C. B. Wellborn (1 episode)

as Alfred Price (1 episode)

as Mayor of Samson (1 episode)

as Attorney Whittier (1 episode)

as Art Llewellan (1 episode)

as Specialist #1

as Frank Caldwell (26 episodes)