"Former CIA man, Bill Fenner, now a downbeat, loner journalist, is sent to Venice to investigate the shock suicide bombing by an American diplomat at a peace conference."
Robert Vaughn
as Bill Fenner
Felicia Farr
as Claire Connor
Karlheinz Böhm
as Robert Wahl
Luciana Paluzzi
as Giulia Almeranti
Boris Karloff
as Dr. Pierre Vaugiroud
Roger C. Carmel
as Mike Ballard
Ed Asner
as Frank Rosenfeld
Joe De Santis
as Jan Aarvan
Fabrizio Mioni
as Russo
Bill Weiss
as Goldsmith
Elke Sommer
as Sandra Fane
Wesley Lau
as Neill Carlson
Jerry Thorpe
Director
Helen MacInnes
Novel
E. Jack Neuman
Writer
Lalo Schifrin
Original Music Composer
Milton Krasner
Director of Photography
Producer
Lloyd Richards
Associate Producer
Henry Berman
Editor
Leroy Coleman
Art Direction
George W. Davis
Henry Grace
Set Decoration
Hugh Hunt
Sydney Guilaroff
Hairstylist
William Tuttle
Makeup Artist
E. Darrell Hallenbeck
Assistant Director