Nyder (archive recording)

Captain Exdrell

BBC Executive

Bernard (1 episode)

Arranches (1 episode)

Mr. Dubbin

Stephen Kedge

Secretary Rontane (2 episodes)

Major General Oster

Major General Oster (1 episode)

Manners (1 episode)

Arthur Wainright (1 episode)

Bradshaw (1 episode)

Harry Gold (1 episode)

Professor Heinz Laubenthal (2 episodes)

Dr. Whatmore (2 episodes)

Doctor

Registrar (1 episode)

Nyder (6 episodes)

Dr. Lawrence (6 episodes)

Professor Whitaker (5 episodes)