John Lehne

as Harold

as Stan Moortin (1 episode)

as Bartman

as Jonathan Pope (3 episodes)

as Billy Whelan

as Kenneth Randall (1 episode), as Dr. Quentin Lawrence (1 episode)

as Captain Braddock (1 episode), as Newman (2 episodes)

as Lieutenant Cornella (1 episode)

as Dr. Beddows (1 episode)

as Havilland

as Gene Normile

as Stu McGrath

as James Ryan (1 episode)

as Riggins

as Skeet

as Andrew Parkhurst (4 episodes)

as Lt. Merholz