If It's Tuesday, This Must Be Belgium

Ian McShane

Charlie Cartwright

Suzanne Pleshette

Sam 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

Feda

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

Jennifer White

Dot

Carol Cleveland

Travel Agent

Sonya Doumen

Miss Belgium

Roger Six

Marcel

Frank Latimore

George

Yutte Stensgaard

Museum Guide

Doreen Dearnaley

Continuity

Mel Stuart

Director

David Shaw

Writer

David L. Wolper

Executive Producer

Mary Selway

Additional Casting

Mario Olivieri

Location Manager

Stan Margulies

Producer

Lynn Stalmaster

Casting

Vilis Lapenieks

Director of Photography

Derek Ball

Sound

Jeff Bushelman

Sound Editor

Robert Glenn

Sound Editor