Peter Jeffrey

as Pilot (voice)

as Sir Hubert Grindcobbe (12 episodes)

as Prof. Bannerman

as Mr. Bruff

as Wentworth

as The Duke of Norfolk (6 episodes)

as Bishop Hermogones

as Commissioner Colin Blamire (1 episode), as Colin Blamire, as Deputy Commissioner Colin Blamire (1 episode), as Commissioner Sir Colin Blamire (1 episode)

as Peter Morris

as Mr Maynard (1 episode)

as Sir Ronald Tibbit QC (1 episode)

as Bulstrode (6 episodes)

as Colonel Bernwood (6 episodes)

as Derek (1 episode)

as Mr. Ryle (1 episode)

as Lord Chief Justice (1 episode)

as William Combe

as Mycroft Holmes

as Rev. Mendel of Riminov

as Peter Jeffrey (8 episodes)

as Sultan

as Henry Windscape

as Chorus

as Geoffrey Connaught (1 episode)