Matt Lagan

as Park Ranger (1 episode)

as Fred Beetson

as London Bartender (2 episodes)

as Admiral Engleberg

as Doink-it Spokesman (1 episode)

as No. 4

as Nathaniel Ward

as Capt. John 'Boomer' Enderby

as Commander Grey

as National Security Advisor Cason

as Submarine Captain Jim

as Harvey Pitts

as Kantos Kan

as Lind L Taylor (archive footage)

as Destroyer Captain

as Lind L. Taylor

as Doug Bryant (1 episode)

as Keenan