Orson Welles as Gregory Arkadin

Akim Tamiroff as Jakob Zouk

Grégoire Aslan as Bracco

Patricia Medina as Mily

Jack Watling as Marquis of Rutleigh

Mischa Auer as The Professor

Peter van Eyck as Thaddeus

Michael Redgrave as Burgomil Trebitsch

Amparo Rivelles as

Frédéric O'Brady as Oscar

Irene López Heredia as

Tamara Shayne as Woman in Apartment

Paola Mori as Raina Arkadin

Robert Arden as Guy Van Stratten

Gustavo Re as Police at Naples Port (uncredited)

Manuel Requena as General Martinez

Emilio G. Ruiz as (uncredited)

Jacinto San Emeterio as (uncredited)

Gary Land as (uncredited)

Sergio Orta as (uncredited)

José González Talavera as (uncredited)

Arcadio Ochoa as

Mateo Guitart as (uncredited)

Manolita García as

Pedro Vidal as (uncredited)

Hermenegildo Igarzábal as

Andrés M. Palacios as

Antonio Molino Rojo as (uncredited)

G. Castro as

Vicente Martín as (uncredited)

Aurelio G. Gordillo as

Carmen Rambla as (uncredited)

Gert Fröbe as First Policeman - Munich

Sergio Mendizábal as (uncredited)

Emilio Fornet as Party Guest (uncredited)

Katina Paxinou as Sophie

Suzanne Flon as Baroness Nagel

Terence Longdon as Secretary

Annabel Buffet as Parisian woman with bread

Eduard Linkers as Second Policeman - Munich

Manolita G. Fraile as (uncredited)

Gordon Heath as Pianist (uncredited)

Anne-Marie Mersen as (uncredited)

Robert Rietti as Airport Control Tower Operator (uncredited)

Billie Whitelaw as Raina Arkadin (voice) (uncredited)

Angel Díaz Palencia as

Antoñita Moreno as Cantante