If It's Tuesday, This Must Be Belgium

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

Mel Stuart Director Lynn Stalmaster Casting Walter Scharf Original Music Composer David L. Wolper Executive Producer