John Quayle

as Dr. Benjamin Beenyman (1 episode)

as Professor Whiner

as Geoffrey Titchfield (2 episodes)

as Lord John Choat

as Sir Godfrey Nicholson

as Jolyon (2 episodes)

as Dr. Demainbray (1 episode)

as Mr Wilcox (1 episode)

as Mr. Judd (1 episode)

as Woodley (7 episodes)

as Mr. Breeze (9 episodes)

as Stevenson Davies (2 episodes)

as Major Willoughby-Gore (14 episodes)

as Pendlebury

as Captain Henry Cox

as Alfred Granger

as Dentist (1 episode)

as Mr Field (1 episode)

as Vicar (1 episode)

as Malcolm (15 episodes)

as Fforbes-Ffortescue (1 episode)

as Psychologist (1 episode)

as Mr Burt (1 episode)

as Elleston (1 episode)