Faceless

Docteur Flamand

Nathalie

Terry Hallen

Morgan (as Chris Mitchum)

Mme Sherman (as Stephane Audran)

Barbara Hallen

Ingrid Flamand

Mme François

Docteur Orloff

Gordon (as Gerard Zalcberg)

Commissaire Legris

La receptionniste

Mélissa

Maxence

Doudou

La Baronne (as Mony Dalmes)

La cantatrice

L'homme du Bois de Boulogne

Karen

Gina

Femme Vitriol

Concierge Hôtel

Employé Morgue

La Barmaid

Mme Orloff

Rachid

Le secrétaire (as Thierry Foulques)

Wallace

Following the filming of the rape scene, Gérard Zalcberg was so disgusted by what his character was scripted to act out that he started weeping and apologizing terribly to Caroline Munro. Munro comforted him, telling him she understood fully and reminding him that it was truly only acting, not real. The scene originally called for Munro to be partially nude, but she refused, claiming that was unnecessary and insisting that just showing some scenes which hinted at what was happening would get the basic idea across.

On the American version, the last line of the film spoken by Telly Savalas is in the French language. What the line actually translates to is "Mrs. Ginny, get me out on the first flight to Paris"