- Ian McShane
- Charlie Cartwright
- Suzanne Pleshette
- Samantha Perkins
- Vittorio De Sica
- Shoemaker
- Murray Hamilton
- Fred Ferguson
- Sandy Baron
- John Marino
- Mario Carotenuto
- Giuseppe
- Paul Esser
- German Sergeant
- Suzy Falk
- German Sergeant's Wife
- Michael Constantine
- Jack Harmon
- Pamela Britton
- Freda
- Norman Fell
- Harve Blakely
- Reva Rose
- Irma Blakely
- Hilarie Thompson
- Shelly Ferguson
- Luke Halpin
- Bo
- Donovan
- Singer in Youth Hostel
- Marty Ingels
- Bert Greenfield
- Catherine Spaak
- Woman Posing for Photographer
- Mildred Natwick
- Jenny Grant
- Peggy Cass
- Edna Ferguson
- Senta Berger
- London Saleswoman
- Joan Collins
- Girl on Sidewalk
- Marina Berti
- Gina
- Robert Vaughn
- Antonio - Photographer
- John Cassavetes
- Steve
- Ben Gazzara
- Card Player
- Patricia Routledge
- Mrs. Featherstone
- Ermelinda De Felice
- Italian Woman in Automobile Accident
- Anita Ekberg
- Performer
- Elsa Martinelli
- Maria - Woman on Venetian Bridge
- Virna Lisi
- John's Beautiful Cousin in Rome
- Aubrey Morris
- Harry Dix
- Sonya Doumen
- Miss Belgium
- Friedrich Schoenfelder
- (scenes deleted)
- Roger Six
- Marcel
- Jennifer White
- Dot
- Carol Cleveland
- Travel Agent
- Frank Latimore
- George
- Tina Simmons
- London Tourist
- Yutte Stensgaard
- Museum Guide
