Mister Jerico

Con man Dudley Jerico sets out to rob corrupt millionaire Victor Rosso of his legendary Gemini diamond, but there's another operator in town who is out to con the con.

Patrick Macnee

Dudley Jerico

Connie Stevens

Susan Gray / Claudine / Georgina

Herbert Lom

Victor Russo

Marty Allen

Wally

Leonardo Pieroni

Angelo

Jasmina Hilton

Maid

Peter Yapp

Felipe

Bruce Boa

Nolan

Joanne Dainton

Merle

Paul Darrow

Receptionist

June Cooper

First Stewardess (uncredited)

Nancy Egerton

Second Stewardess (uncredited)

Anne Godfrey

Elegant Lady (uncredited)

Michael Stevens

Hotel Bartender (uncredited)

Nikki Van der Zyl

Claudine (voice) (uncredited)

Joe Wadham

Harry, Nolan's Man (uncredited)