Charles Kay

as Professor Maltus

as St John Artemis (2 episodes)

as Pope Paul VI

as Canon Pennyfather (1 episode)

as Gribsby

as George Thornton

as Elliot Strange (1 episode)

as Henry York (1 episode), as Arno Gibbs (1 episode)

as Julius Quilter

as Monty Francis (1 episode)

as Secretary

as Captain Bassett

as Humphrey (1 episode)

as Monsieur Eugène Mollet (2 episodes)

as J.J. Morley (14 episodes)

as Archbishop of Canterbury

as Edward Coniston (3 episodes)

as Dobson (7 episodes)

as Neil

as Professor Weinberg (1 episode)

as Mr Kaufman (1 episode)

as Pendleton (6 episodes)

as Mr Padbury (1 episode)