With Paul Mantee, Terry Moore, Jan Murray, Sue Ane Langdon, Eileen O'Neill, Maureen Arthur, Leonard Stone, Richard Kiel, Mimi Dillard, Martha Luttrell
A Man Called Dagger is a low-budget spy film that was the first collaboration between director Richard Rush, cinematographer László Kovács and stuntman Gary Warner Kent.
It was filmed in 1966 by Lew Horwitz's Global Screen Associates under the title Why Spy? The film was originally intended to have been released by Mike Ripps' Cinema Distributors of America in September 1966. When GSA and CDA's partnership collapsed, the film was picked up by MGM and released a year later.