Mark Shera

as Radio Caller (1 episode)

as Paul (1 episode)

as Professor Hayward (1 episode)

as Roger

as Lt. Ted Byrnes (2 episodes)

as Ted Bennett / Swanson (1 episode)

as Jeff Perkins

as Raymond Carmody (2 episodes), as Van Buran (1 episode), as Thor Danziger (1 episode)

as Vince (1 episode)

as Bruce Morrison (1 episode), as Jeff Cross (1 episode)

as Officer Dominic Luca (37 episodes)

as Nicky Kaminios

as Patrolman Ralph Warren (1 episode)

as JR Jones (69 episodes)

as Joachim Etchahoun (1 episode)