Mark Kingston

as Old Nick (1 episode)

as Gerald Stiles (1 episode)

as Lennie Trainer (1 episode)

as Roy Bennet (1 episode)

as Leonard Duglass (1 episode)

as Dennis (1 episode)

as Geoff Price (18 episodes)

as Don (1 episode)

as Andrew Marsh (1 episode)

as Bill Stanhope (2 episodes)

as Freddy Ogilvy (1 episode)

as President Cerdini

as Mr. Parrish (1 episode), as Edward Avery (1 episode), as Peter Williams (1 episode)

as President (1 episode)

as Dr. La Grange (1 episode)

as Ray Hewitt

as Ray Hewitt (8 episodes)

as Hamilton Thisp

as Hamilton Thisp (1 episode)

as Mr Sargent-Smith (1 episode)

as Leo Brandon (15 episodes)

as Ken Archer (6 episodes)

as Air Chief Marshal Sir Trafford Leigh-Mallory (1 episode)