Fitzwilly

Dick Van Dyke

Claude R. Fitzwilliam

Barbara Feldon

Juliet Nowell

John McGiver

Albert

Edith Evans

Miss Victoria Woodworth

Harry Townes

Mr. Nowell

John Fiedler

Mr. Morton Dunne

Anne Seymour

Grimsby

Norman Fell

Oberblatz

Cecil Kellaway

Buckmaster

Stephen Strimpell

Byron Casey

Helen Kleeb

Mrs. Mortimer

Paul Reed

Prettikin

Albert Carrier

Pierre

Nelson Olmsted

Simmons

Dennis Cooney

Assistant D.A. Elliot Adams

Noam Pitlik

Charles

Anthony Eustrel

Garland

Sam Waterston

Oliver

Karen Norris

Kitty

Patience Cleveland

Dolly

Lew Brown

Frank

Monroe Arnold

Goldfarb

Robert Williams

Ryan

Laurence Naismith

Mr. Cotty (uncredited)

Barbara Morrison

Mrs. Mudge (uncredited)

Kenner G. Kemp

Bar Patron (uncredited)

Fletcher Allen

Reporter (uncredited)

Merie Earle

Elderly Shoplifter (uncredited)

John Alban

Customer (uncredited)

Ruth Foster

Customer (uncredited)

Meg Wyllie

Saleswoman (uncredited)

Arthur Peterson

Liquor Store Clerk (uncredited)

John Daheim

Man Who Gets Slapped (uncredited)

Gary Dubin

Kid (uncredited)

Ethelreda Leopold

Customer (uncredited)

Arthur Tovey

Bar Patron (uncredited)

Dick Cherney

Bar Patron (uncredited)

Paulene Myers

Oberblatz's secretary (uncredited)