- Odile Versois
- Anna Szobek
- David Knight
- Ted Hutchens
- Joseph Tomelty
- Moffatt
- Theodore Bikel
- Joseph
- Paul Carpenter
- Gregg Pearson
- Peter Illing
- Dr. Weissbrod
- John McLaren
- Col. Margetson
- David Kossoff
- Geza Szobek
- Bernard Rebel
- Stefan
- Jill Adams
- Judy
- Jack Armstrong
- Scientist at Unveiling Ceremony
- Robin Bailey
- Thomas Cook cashier
- Paul Beradi
- Boat Train Passenger
- Dora Bryan
- Switchboard Operator
- Peter Dyneley
- Regan
- Dwight D. Eisenhower
- Self - in photo
- Raymond Francis
- Detective Peters
- Robert Gregory
- Thomas Cook Travel Agent
- Pat Hagan
- Detective at Victoria Station
- Victor Harrington
- Man Entering Royal Opera House
- Percy Herbert
- Richards
- George Hilsdon
- Detective at Victoria Station
- Douglas Ives
- Ticket Collector
- Sam Kydd
- Driver, Embassy car JAK711
- Victor Maddern
- Sailor
- Betty Marsden
- Mrs. Forrester
- Aubrey Mather
- Waiter
- Richard Neller
- Thomas Cook Customer
- Hal Osmond
- Detective at station and on train
- Joe Phelps
- Police Constable at Victoria Station
- Ernie Priest
- Pub Customer
- Stuart Saunders
- Ticket Inspector
- Joan Sims
- Telephone Operator, American Embassy
- Ewen Solon
- Train Attendant
- Stanley Van Beers
- Receptionist at American Embassy
- John Warren
- Boat Owner
- Russell Waters
- Counterman
- Johnny Wyne
- Man at Tube Station
