James Darren

Moondoggie (Jeffrey Matthews)

Cindy Carol

Frances "Gidget" Lawrence

Jessie Royce Landis

Albertina Blythe

Cesare Danova

Paolo Cellini

Danielle De Metz

Daniela

Joby Baker

Judge

Trudi Ames

Libby Bennett

Noreen Corcoran

Lucy McDougall

Peter Brooks

Clay Anderson

Lisa Gastoni

Signora Cellini

Claudio Gora

Alberto

Don Porter

Russell Lawrence

Jeff Donnell

Mrs. Lawrence

Eddra Gale

Fat Party Guest

Mimo Billi

Fontana Doorman (uncredited)

Luigi Bonos

Museum Official (uncredited)

Charles Borromel

Whitefaced Poet (uncredited)

Leonardo Botta

Italian Boy (uncredited)

Mathilda Calnan

Old Party Guest (uncredited)

José Canalejas

Pinchman (uncredited)

Rod Dana

U.S. Embassy Marine (uncredited)

Jim Dolen

Nelson (uncredited)

Eddie Foy Jr.

Beachgoer Wanting to Use Phone (uncredited)

Eddra Gale

Fat Party Guest (uncredited)

Joe Kamel

Italian Boy (uncredited)

Evi Marandi

Receptionist (uncredited)

Milly

Henrietta (uncredited)

John Stacy

Drunken Butler (uncredited)

Jill Lator

(uncredited)