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
