Alain Delon

Tom Ripley

Marie Laforêt

Marge Duval

Maurice Ronet

Philippe Greenleaf

Erno Crisa

Inspector Riccordi

Frank Latimore

O'Brien

Billy Kearns

Freddy Miles

Ave Ninchi

Signora Gianna

Viviane Chantel

Belgian Lady

Nerio Bernardi

Agency Director

Barbel Fanger

Mr. Greenleaf

Lily Romanelli

Housekeeper

Nicolas Petrov

Boris

Elvira Popescu

Mrs. Popova

Romy Schneider

Freddy's Companion (uncredited)

Paul Müller

Blind Man (uncredited)

René Clément

Clumsy Waiter (uncredited)

Jacqueline Parey

Ingrid (uncredited)

Leonello Zanchi

Police Inspector (uncredited)

Walter Grant

Purchaser of the Yacht (uncredited)

Nino Vingelli

(uncredited)

Romano Gaspari

Male Nurse (uncredited)