Spudvisor
Ian Hendry

Erik Shepherd (15 episodes)

Stefan Gryff

Capt. Michael Krasakis (12 episodes)

Frank Duncan

Cotton (6 episodes)

Controller (uncredited) (3 episodes)

Controller (1 episode)

Julia Goodman

Kirsten McLuhan (6 episodes)

Kirsten McLuhan (uncredited) (1 episode)

Martin Howells

Mark Potter (6 episodes)

Mark Potter (uncredited) (1 episode)

Karl Held

Philip Mervish (5 episodes)

James Kerry

Donald Culley (4 episodes)

Donald Culley (uncredited) (1 episode)

Susan Engel

Imogen Lundquist (5 episodes)

Ronald Howard

Dr. John Dartington (5 episodes)

Thorley Walters

Maj. Edward Woolley (4 episodes)

John Horsley

Sir Hugh Russell (3 episodes)

Cyd Hayman

Ruth Stewart (2 episodes)

Antonio Di Maggio

Policeman (uncredited) (1 episode)

Policeman (1 episode)

John Savident

Maj. Constantinos (2 episodes)

John G. Heller

Frank Zimmerman (1 episode)

Dora Reisser

Inge Zimmerman (1 episode)

Milos Kirek

Instructor (uncredited) (1 episode)

Ann Firbank
Susan Tebbs

Jennifer Neal (1 episode)

Pamela Roland

Sheila Fleming (1 episode)

Derek Ware
Ingrid Hafner
Suzan Farmer

Julie Johnson (1 episode)

Ken Wynne
Tony Boyd

Police Sergeant (1 episode)

Peter Carlisle

American Tourist (1 episode)

Griffith Jones
Antony Carrick

Chief Supt. Fowler (1 episode)

Lucian Janus

Greek Policeman (1 episode)

Judy Allen

Costume Design (9 episodes)