Bill Wallis

as Archbishop Cranmer

as Ploppy (archive footage) (uncredited)

as Ziggy

as Judge Bradshaw (2 episodes)

as Dr. Trevor Lessiter (1 episode)

as Mr Smith

as Local Party Leader

as Self

as Dr. Nick McKenzie (50 episodes)

as Walter (3 episodes)

as President

as Vicar at Hunt

as Henry Beauchamp-Harper

as Warden

as Prestatyn Powell (1 episode)

as Edward Lovegarden

as Vyshinsky

as Professor Phipps

as Reece

as Graham Lane

as Duggie Bullock (4 episodes)

as Horace Trefusis (1 episode)

as Warden (2 episodes)

as Werner Beck (7 episodes)

as Schatz