Tom Ripley
Marge Duval
Philippe Greenleaf
Inspector Riccordi
O'Brien
Freddy Miles
Signora Gianna
The Belgian Lady
Agency Director
Mr. Greenleaf
Housekeeper
Boris
Mrs. Popova
Freddy's Companion (uncredited)
Blind Man (uncredited)
The clumsy waiter (uncredited)
Ingrid (uncredited)
Police inspector (uncredited)
Purchaser of the yacht (uncredited)
(uncredited)