Woody Allen as Howard Prince

Zero Mostel as Hecky Brown

Herschel Bernardi as Philip Sussman

Michael Murphy as Alfred Miller

Andrea Marcovicci as Florence Barrett

Remak Ramsay as Hennessey

Marvin Lichterman as Myer Prince

Lloyd Gough as Delaney

David Margulies as Phelps

Joshua Shelley as Sam

Norman Rose as Howard's Attorney

Charles Kimbrough as Committee Counselor

Josef Sommer as Committee Chairman

Danny Aiello as Danny LaGattuta

Georgann Johnson as T.V. Interviewer

Scott McKay as Hampton

David Clarke as Hubert Jackson

I.W. Klein as Bank Teller

John Bentley as Bartender

Julie Garfield as Margo

Murray Moston as Boss

MacIntyre Dixon as Harry Stone

Rudolph Willrich as Tailman

Burt Britton as Bookseller

Albert M. Ottenheimer as School Principal

William Bogert as Parks

Joey Faye as Waiter

Marilyn Sokol as Sandy

John J. Slater as T.V. Director

Renee Paris as Girl in Hotel Lobby

Gino Gennaro as Stage Hand

Joan Porter as Myer's Wife

Andrew Bernstein as Alfred's Child

Jacob Bernstein as Alfred's Child

Matthew Tobin as Man at Party

Marilyn Persky as Man at Party's Date

Sam McMurray as Young Man at Party

Joe Jamrog as FBI Man

Michael Miller as FBI Man

Lucy Lee Flippin as Nurse

Jack Davidson as Congressman

Donald Symington as Congressman

Pat McNamara as Federal Marshal

Dwight D. Eisenhower as Self (archive footage)

Mamie Eisenhower as Self (archive footage)

Douglas MacArthur as Self (archive footage)

Harry S. Truman as Self (archive footage)

Billie Perkins as Waitress (uncredited)

Frankie Verroca as Hotel Bellman (uncredited)

Carson Grant as Eddy Waiter (uncredited)

Harrison Ressler as Protester (uncredited)