Tommy Kirk

Character: Tommy Carpenter

Annette Funicello

Character: Annette Aliotto

Nino Castelnuovo

Character: Bruno

Clelia Matania

Character: Aunt Gisella

Carlo Rizzo

Character: Uncle Mario

Ivan Desny

Character: Count Roberto

Venantino Venantini

Character: Lorenzo

Ivan Triesault

Character: Professor Levenson

Odoardo Spadaro

Character: Padrone

Renzo Palmer

Character: Carabiniere

Richard Watson

Character: Butler

Helen Stirling

Character: Miss Brooks

Elisa Cegani

Character: Felicia

Liana Del Balzo

Character: Countess Della Scala

George Ehling

Character: Gino