(1966) The Last of the Secret Agents?

as Prof. Werner von Koenig

(1942) To Be or Not to Be

as Col. Ehrhardt

(1953) Stalag 17

as Sgt. Johann Sebastian Schulz

(1944) House of Frankenstein

as Burgomeister Hussman

(1939) Ninotchka

as Comrade Iranoff

(1944) It Happened Tomorrow

as Mr. Beckstein

(1938) The Great Waltz

as Wertheimer

(1941) Love Crazy

as Dr. Wuthering

(1936) The Princess Comes Across

as Steindorf

(1937) A Day at the Races

as Dr. Leopold X. Steinberg

(1940) Comrade X

as Emil Von Hofer

(1946) A Night in Casablanca

as Count Pfefferman / Heinrich Stubel

(1949) Border Incident

as Hugo Wolfgang Ulrich

(1940) Outside the Three-Mile Limit

as Van Cleve

(1942) Crossroads

as Dr. Alex Dubroc

(1953) Houdini

as Schultz

(1937) Nothing Sacred

as Dr. Emil Eggelhoffer

(1941) That Uncertain Feeling

as Kafka (as Sig Rumann)

(1939) Only Angels Have Wings

as Dutchy

(1964) 36 Hours

as German Guard

(1935) A Night at the Opera

as Gottlieb

(1937) Thin Ice

as Prime Minister

(1954) 3 Ring Circus

as Fritz Schlitz

(1957) The Wings of Eagles

as Manager

(1954) The Glenn Miller Story

as W. Kranz

(1938) The Saint in New York

as Hutch Rellin

(1942) Enemy Agents Meet Ellery Queen

as Heinrich, Spy Leader

(1944) Summer Storm

as Kuzma

(1955) Many Rivers to Cross

as Spectacle Man

(1942) China Girl

as Jarubi

(1943) Government Girl

as Ambassador

(1943) Tarzan Triumphs

as Sergeant

(1952) The World in His Arms

as General Ivan Vorashilov

(1941) The Wagons Roll at Night

as Hoffman the Great

(1937) Think Fast, Mr. Moto

as Nicolas Marloff

(1937) Thank You, Mr. Moto

as Colonel Tchernov

(1940) Dr. Ehrlich's Magic Bullet

as Dr. Hans Wolfert

(1947) Mother Wore Tights

as Papa

(1972) Hollywood: The Dream Factory

as Self (archive footage)

(1937) Lancer Spy

as Lt. Col. Gottfried Hollen

(1940) Four Sons

as Newmann

(1939) Never Say Die

as Poppa Ingleborg

(1955) Carolina Cannonball

as Stefan

(1935) The Farmer Takes a Wife

as Blacksmith (as Siegfried Rumann)

(1938) Girls on Probation

as Roger Heath

(1955) Spy Chasers

as King Rinko

(1936) The Bold Caballero

as Commandante Sebastian Golle

(1939) Remember?

as Dr. Schmidt

(1942) Desperate Journey

as Preuss

(1948) Give My Regards to Broadway

as Arthur Dinkel

(1938) Paradise for Three

as Mr. Bold

(1941) Shining Victory

as Professor Herman Von Reiter

(1939) Honolulu

as Psychiatrist

(1940) Bitter Sweet

as Herr Schlick

(1945) She Went to the Races

as Dr. Gurke

(1938) Suez

as Sergeant Pellerin

(1943) They Came to Blow Up America

as Dr. Herman Holger

(1953) The Girl on The Roof

as ---

(1948) The Emperor Waltz

as Dr. Zwieback

(1935) The Wedding Night

as Mr. Jan Novak

(1938) I'll Give a Million

as Anatole Primerose

(1940) I Was an Adventuress

as Herr Protz

(1935) Under Pressure

as Doctor

(1937) Midnight Taxi

as John B. Rudd

(1944) The Hitler Gang

as General von Hindenburg

(1946) Faithful in My Fashion

as Professor Boris Riminoffsky

(1937) The Great Hospital Mystery

as Dr. Taggert

(1937) On the Avenue

as Herr Hanfstangel

(1943) The Song of Bernadette

as Louis Bouriette

(1942) Berlin Correspondent

as Dr. Dietrich

(1939) Confessions of a Nazi Spy

as Krogman

(1952) O. Henry's Full House

as Menkie (segment "The Gift of the Magi") (uncredited)

(1942) Remember Pearl Harbor

as Dirk Van Hoorten

(1940) Victory

as Mr. Schomberg

(1961) One, Two, Three

as Count von Droste Schattenburg (voice) (uncredited)

(1934) The World Moves On

as Baron von Gerhardt (as Siegfried Rumann)

(1950) Father Is a Bachelor

as Jericho Schlosser

(1937) Love Under Fire

as General Montero

(1937) This Is My Affair

as Gus

(1954) Living It Up

as Dr. Emile Egelhofer

(1941) Breakdowns of 1941

as Self (archive footage) (uncredited)

(1948) If You Knew Susie

as Count Alexis

(1934) Marie Galante

as Brogard

(1945) The Dolly Sisters

as Ignatz Tsimmis

(1952) Ma and Pa Kettle on Vacation

as Cyrus Kraft

(1941) This Woman Is Mine

as John Jacob Astor

(1966) Way... Way Out

as Russian Delegate

(1943) Sweet Rosie O'Grady

as Joe Flugelman

(1941) So Ends Our Night

as Ammers

(1941) The Man Who Lost Himself

as Dr. Simms (as Sig Rumann)

(1937) Heidi

as Police Captain

(1929) Die Königsloge

as Bailiff

(1937) Maytime

as Fanchon (as Sig Rumann)

(1966) The Fortune Cookie

as Professor Winterhalter

(1951) On the Riviera

as Gapeaux

(1937) Seventh Heaven

as Durand (as Sig Rumann)

(1945) Men in Her Diary

as Mme. Irene

(1961) The Errand Boy

as Baron Elston Carteblanche

(1954) White Christmas

as Landlord (uncredited)

(1945) A Royal Scandal

as General Ronsky

(1935) East of Java

as Hans Muller

(1966) Doom of Dracula

as The Burgomaster

(1946) Night and Day

as Wilowski

(1964) Robin and the 7 Hoods

as Hammacher (uncredited)

(1941) World Premiere

as Franz von Bushmaster

(1935) Spring Tonic

as Matt Conklin

(1934) Servants' Entrance

as Hans Hansen (as Siegfried Rumann)

(1929) Lucky Boy

as Bridge player (Unbilled)

(1957) Maverick

as ---

(1963) Petticoat Junction

as Professor Lieberschmit

(1953) General Electric Theater

as Dr. Haegendorff

(1959) Johnny Staccato

as ---

(1964) Daniel Boone

as Van Coot

(1959) One Step Beyond

as Franz Schuldorf

(1960) Pete and Gladys

as ---

(1953) Private Secretary

as ---

(1956) The Dinah Shore Chevy Show

as Self

(1958) Lawman

as ---

(1964) The Addams Family

as Eric Von Bissell

(1965) Hank

as ---

(1959) The Many Loves of Dobie Gillis

as ---

(1957) Maverick

as Capt. Steeger

(1963) The Danny Kaye Show

as Self