Robert Wagner as Mike Banning

Anjanette Comer as Carol Lindquist

Jill St. John as Angela Barr

Guy Stockwell as Jonathan Linus

James Farentino as Chris Patton

Susan Clark as Cynthia Linus

Howard St. John as J. Pallister Young

Mike Kellin as Harry Kalielle

Gene Hackman as Tommy Del Gaddo

Sean Garrison as Richard Tyson

Logan Ramsey as Doc Brewer

Edmon Ryan as Stuart Warren

Oliver McGowan as Senator Brady

Lucille Meredith as Maggi Andrews

William Cort as Tony (as Bill Cort)

Delores Wells as Girl at Pool (uncredited)

Warde Donovan as Patrolman (uncredited)

Gary Downey as Bob Vincent (uncredited)

Robert Rothwell as Robert St. James (uncredited)

Rusty Lane as Guard (uncredited)

Tom Palmer as Sam Wallace (uncredited)

George Boyce as Club Member (uncredited)

Leon Alton as Club Member (uncredited)

Kirk Alyn as Bidder (uncredited)

Margaret Bacon as Club Member (uncredited)

Al Bain as Club Member (uncredited)

Benjie Bancroft as Club Member (uncredited)

Martin Braddock as Arthur (uncredited)

Paul Bradley as Club Member (uncredited)

Ron Brogan as Bidder (uncredited)

Ralph Brooks as Club Member (uncredited)

Michael Brown as Chilton Andrews (uncredited)

George Bruggeman as Waiter (uncredited)

Robert Buckingham as Club Member (uncredited)

Dick Cherney as Match Spectator (uncredited)

Pat Colby as Golfer (uncredited)

Brian Corcoran as Schoolboy (uncredited)

George DeNormand as Bob Vincent (uncredited)

Sheila Duffy as Daughter (uncredited)

James Farley as Bidder (uncredited)

Paul Gleason as Golfer (uncredited)

George Golden as Waiter (uncredited)

James Gonzalez as Club Member (uncredited)

Annie Hayes as Domenica (uncredited)

Robert Hitchcock as Club Member (uncredited)

Shep Houghton as Club Member (uncredited)

Kathryn Janssen as Club Member (uncredited)

Joseph La Cava as Waiter (uncredited)

Jeff Lawrence as Club Member (uncredited)

Ethelreda Leopold as Club Member (uncredited)

Mary Lou McGinnis as Girl at Pool (uncredited)

Clyde McLeod as Club Member (uncredited)

Tyler McVey as Marco (uncredited)

Joanne Medley as Sally Davish (uncredited)

Tom Moroney as Tom von Schmidt (uncredited)

Byron Morrow as Miles Gratton (uncredited)

Nino Musco as The General (uncredited)

Norman Palmer as Club Member (uncredited)

Charles Pinney as Bidder (uncredited)

Charles Quinlivan as Hob Davish (uncredited)

Marge Redmond as Marcie (uncredited)

Betty Anne Rees as Girl in Car (uncredited)

Leoda Richards as Art Gallery Patron (uncredited)

Hank Robinson as Club Member (uncredited)

Mike Steele as Bidder (uncredited)

Don Stroud as Man at Golf Course (uncredited)

Arthur Tovey as Party Guest (uncredited)

Bobby Troup as Cappy Sullivan (uncredited)