The Incredible Mr. Limpet

Don Knotts

as Henry Limpet

Carole Cook

as Bessie Limpet

Jack Weston

as George Stickel

Andrew Duggan

as Harlock

Larry Keating

as Admiral P.P. Spewter

Oscar Beregi Jr.

as Nazi Admiral (as Oscar Beregi)

Charles Meredith

as Fleet Admiral

Elizabeth MacRae

as Ladyfish (voice)

Paul Frees

as Crusty (voice)

Wesley Gale

as Man Staring Into Window (uncredited)

Leon Alton

as Officer at Fleet Admiral's Meeting (uncredited)

Phil Arnold

as Short Fisherman (uncredited)

George Bruggeman

as Nazi Officer (uncredited)

Paul Busch

as Sonar Man (uncredited)

Al Checco

as Sailor (uncredited)

Cordy Clark

as Giggling Girl (uncredited)

Roydon Clark

as Sailor (uncredited)

Sayre Dearing

as Passerby/Naval Officer at Meeting (uncredited)

George DeNormand

as Nazi Officer (uncredited)

Dan Dowling

as Naval Officer at Meeting (uncredited)

Harold Dyrenforth

as U-Boat Captain (uncredited)

Louie Elias

as Sailor (uncredited)

Lisabeth Field

as Miss Barnes (uncredited)

Logan Field

as Lieutenant (uncredited)

Fred Fisher

as Officer at Fleet Admiral's Meeting (uncredited)

Walter Friedel

as Nazi Officer (uncredited)

George Golden

as Naval Officer at Fleet Admiral Meeting (uncredited)

Marv Goux

as Nazi Officer (uncredited)

John Hale

as Sailor (uncredited)

Sam Harris

as Officer at Fleet Admiral's Briefing (uncredited)

George Holmes

as Scientist (uncredited)

Joseph La Cava

as Officer at Fleet Admiral's Briefing (uncredited)

Mike Lally

as Naval Officer at Meeting (uncredited)

Harold Miller

as Officer at Fleet Admiral's Briefing (uncredited)

Charles Morton

as Boat Captain (uncredited)

Henry Norell

as Sailor (uncredited)

Jack Pepper

as Sport Fishmern (uncredited)

Montie Plyler

as Helmsman (uncredited)

Felix Reinsch

as Submarine Captain (uncredited)

Waclaw Rekwart

as Passerby (uncredited)

Heinz Sadler

as Sonar Man (uncredited)

Scott Seaton

as Old Man in Shipping Office (uncredited)

Jack Shea

as Sailor (uncredited)

John Truax

as Policeman (uncredited)

Edward Wermel

as Scientist (uncredited)

Feridun Çölgeçen

as Scientist (uncredited)

Peter Adams

as Lieutenant (uncredited)