•
M (1931) – (uncredited) •
Kinder vor Gericht (1931) – Ein Gefangener •
Die Koffer des Herrn O.F. (1931) •
The Exile (1947) – Jan •
Call Northside 777 (1948) – Boris Siskovich (uncredited) •
Letter from an Unknown Woman (1948) – Concierge •
Berlin Express (1948) – Kessler •
A Foreign Affair (1948) – Inspector (uncredited) • ''
The Fighting O'Flynn'' (1949) – General van Dronk •
The Lovable Cheat (1949) – Bailiff •
I Was a Male War Bride (1949) – Minor Role (scenes deleted) •
Love Happy (1949) – Ivan – Assassin in Grunion's Office (uncredited) •
Border Incident (1949) – Fritz •
Bagdad (1949) – Marengo •
Women from Headquarters (1950) – Joe Calla •
Spy Hunt (1950) – Gormand •
Dark City (1950) – Benowski (uncredited) •
Bird of Paradise (1951) – Skipper •
Night Into Morning (1951) – Dr. Franz Niemoller •
Secrets of Monte Carlo (1951) – Louis Gunther •
The Whip Hand (1951) – Dr. Wilhelm Bucholtz •
Unknown World (1951) – Dr. Max A. Bauer •
5 Fingers (1952) – Pullman Porter (uncredited) •
Anything Can Happen (1952) – Sandro •
The Black Castle (1952) – Krantz, the Innkeeper •
The Congregation (1952) • ''
Rogue's March'' (1953) – Alex •
The Stars Are Singing (1953) – Ship's Captain Goslak •
Rebel City (1953) – Spain, the Jeweler •
The Robe (1953) – Slave Dealer (uncredited) •
Flight to Tangier (1953) – Wisil (uncredited) •
Prince Valiant (1954) – Patch-Eye (uncredited) •
Knock on Wood (1954) – Brodnik •
The Iron Glove (1954) – King George I (uncredited) •
Port of Hell (1954) – Snyder •
Sincerely Yours (1955) – Professor Zwolinski (uncredited) •
Artists and Models (1955) – Kurt •
Running Wild (1955) – Leta's Father •
Desert Sands (1955) – Gabin •
Man from Del Rio (1956) – Tom Jordan (uncredited) •
Ride the High Iron (1956) – Yanusz Danielchik •
The Night the World Exploded (1957) – Professor Hagstrom (uncredited) •
Alfred Hitchcock Presents (1958) (Season 3 Episode 28: "Lamb to the Slaughter") - Sam •
Alfred Hitchcock Presents (1958) (Season 3 Episode 39: "Little White Frock") - Mr. Koslow •
Attack of the 50 Foot Woman (1958) – Dr. Heinrich Von Loeb •
The Blue Angel (1959) – Policeman (uncredited) •
Pier 5, Havana (1959) – Schluss •
Judgment at Nuremberg (1961) – Pohl •
The Phantom of Soho (1964) – Wilhelm Grover, man with birthmark •
Freddy in the Wild West (1964) – Old Joe •
Move (1970) – (uncredited) (final film role) Waldis also made several guest appearances on television including roles in
My Little Margie,
The Adventures of Superman,
General Electric Theater,
Lassie,
Maverick,
Alfred Hitchcock Presents,
Perry Mason,
Peter Gunn,
Playhouse 90,
Have Gun - Will Travel,
The Untouchables,
77 Sunset Strip,
Wagon Train,
Lawman,
Ben Casey, ''
Hogan's Heroes, Mannix and Gomer Pyle, USMC''. ==References==