Ken Clark as Francis Coplan - agent FX 18

Jany Clair as Patricia

Jacques Dacqmine as Le Vieux

Daniel Ceccaldi as Noreau

Claude Cerval as Barter

Margit Kocsis as Lila Sari

Ramón Centenero as Legay

Cristina Gaïoni as Arlette

Amédée Doménech as Fondane

Lucia Amram as

André Cagnard as Le tueur

Roberto Camardiel as Mazekia

Anselmo Cid as Rodriguez

Guy Delorme as Lattina

Beni Deus as Gunsson

Robert Favart as Le colonel italien

Henri Guégan as Alderner

Jean-Pierre Laverne as Morvil

José Noguéro as Le colonel espagnol

Pierre Parel as Mairesse

Lorenzo Robledo as Alfonso

Sabine Sun as

Paul Vervisch as

Sal Borgese as Un homme de main de Barter (uncredited)

Astrid Caron as Carla (uncredited)

Aida Power as (uncredited)

Robert Verbecke as (uncredited)

Antoine Baud as Un homme de main de Barter (uncredited)