Robert Hoffmann

Tony Harris

Nathalie Delon

Monica Stiles

Martin Balsam

Inspector Jim Grant

Sherry Buchanan

Karin Hale

Victor Valente

Coleman Perry

Sergio Rossi

Leader of 'The Silencers'

Mario Novelli

The Silencers Henchman

Franco Garofalo

Peter Collins

Giovanna De Luca

Bruno Di Luia

The Silencers Henchman

George Ardisson

Agent for 'The Silencers'

Franco Beltramme

Phillips - Inspector Grant's Assistant

Tom Felleghy

Commander Smith

Cesare Nizzica

Farmer

Carlo Hintermann

Air Marshal Thompson

Mario Gariazzo