Professor McLaughlin

Halo

Mr. Mayer (1 episode)

Councillor Steven Moffat (1 episode)

Arthur Field (1 episode)

Ben Turnbull (1 episode)

Self (1 episode)

Policeman (1 episode)

Bob Cooper

Red Redgrave (1 episode)

(32 episodes)

Dowson (1 episode)

(1 episode)

Bill (1 episode)

Chief Insp. Tobin (1 episode)

Dr. Rawley

Rupert Hathaway

Harold Barnes (3 episodes)

Robert Randell (3 episodes)

Roland Smallbody

Paul Medbury

(1 episode)

Rupert Hathaway (1 episode)

Thomas Seymour (1 episode)

Jack Barclay (1 episode)

Villiers (1 episode)

Thomas Seymour (2 episodes)

Eric

Peter Newcome (1 episode)

Kasher

Gerry

Jameson

Andrés

Captain Tim (1 episode)

Hubert (1 episode)

Operator

Capt. Elliott Thomas

(1 episode)

Hawkins

RAF Dakota Pilot

Geoffrey Mather

Willie

Mark Peel (1 episode)

Silvio (1 episode)

Roger Redfers (1 episode)

Alan

Justin Pritchard (1 episode)

Mark Belden (1 episode)

(1 episode)

Draughtsman

Spanish Officer (1 episode)

Hanson

(1 episode)

Security guard (1 episode)