Mister Roberts (1955) Mister Roberts ... por. 'Doc'
How to Marry a Millionaire (1953) Jak poślubić milionera ... J.D. Hanley
Girl Who Had Everything, The (1953) ... Steve Latimer
Treasure of Lost Canyon, The (1952) ... Homer 'Doc' Brown
It's a Big Country (1951) ... profesor

Dancing in the Dark (1949) ... Emery Slade
Take One False Step (1949) ... prof. Andrew Gentling
Mr. Peabody and the Mermaid (1948) ... Arthur Peabody
Senator Was Indiscreet, The (1947) ... sen. Melvin G. Ashton
Song of the Thin Man (1947) Pieśń mordercy ... Nick Charles
nom. do Oscara Life with Father (1947) Życie z ojcem ... Clarence Day
Hoodlum Saint, The (1946) ... Terence Ellerton 'Terry' O'Neill
Ziegfeld Follies (1946) Rewia na Broadwayu ... Florenz Ziegfeld, Jr.
Thin Man Goes Home, The (1945) Powrót do domu ... Nicholas 'Nick' Charles
Heavenly Body, The (1943) ... William S. Whitley
Youngest Profession, The (1943) ... rola epizodyczna
Crossroads (1942) ... David Talbot ◦ Jean Pelletier
Shadow of the Thin Man (1941) Cień zbrodni ... Nick Charles
Love Crazy (1941) ... Stephen 'Steve' Ireland
I Love You Again (1940) ... Lawrence 'Larry' Wilson ◦ George Carey

Another Thin Man (1939) Sprawa dla detektywa ... Nick Charles
Baroness and the Butler, The (1938) ... Johann Porok
Double Wedding (1937) Podwójne wesele ... Charles 'Charlie' 'Horse' Lodge
Last of Mrs. Cheyney, The (1937) Koniec pani Cheyney ... Charles
Emperor's Candlesticks, The (1937) ... baron Stephan Wolensky
After the Thin Man (1936) Od wtorku do czwartku ... Nick Charles
Libeled Lady (1936) Romantyczna pułapka ◦ Jego złota rybka ... Bill Chandler
nom. do Oscara My Man Godfrey (1936) Mój pan mąż ... Godfrey Smith ◦ Godfrey 'Duke' Parke
Ex-Mrs. Bradford, The (1936) ... dr Lawrence Bradford
Great Ziegfeld, The (1936) Wielki Ziegfeld ◦ Król kobiet ... Florenz Ziegfeld, Jr.
Escapade (1935) Eskapada ... Fritz
Rendezvous (1935) ... por. William 'Bill' Gordon ◦ Anson Meridan
Reckless (1935) Dla ciebie tańczę ... Ned Riley
Star of Midnight (1935) Człowiek, który wiedział ... Clay 'Dal' Dalzell
nom. do Oscara Thin Man, The (1934) Pościg za cieniem ◦ W pogoni za cieniem ... Nick Charles
Evelyn Prentice (1934) ... John Prentice
Key, The (1934) ... kpt. Bill Tennant
Manhattan Melodrama (1934) Wielki gracz ... James W. 'Jim' Wade
Fashions of 1934 (1934) ... Sherwood Nash
Kennel Murder Case, The (1933) Drzwi były zamknięte ... Philo Vance
Double Harness (1933) ... John Fletcher
Private Detective 62 (1933) ... Donald Free
Lawyer Man (1933) ... Anton 'Tony' Adam
One Way Passage (1932) Droga bez powrotu ... Dan Hardesty
Jewel Robbery (1932) Rabunek u jubilera ... rabuś
High Pressure (1932) ... Gar Evans
Road to Singapore, The (1931) ... Hugh Dawltry
Ladies' Man (1931) ... Jamie Darricott
Man of the World (1931) ... Michael Trevor
Behind the Make-Up (1930) ... Gardoni
For the Defense (1930) ... William Foster
Shadow of the Law (1930) ... John Nelson ◦ Jim Montgomery
Paramount on Parade (1930) Parada Paramountu ... Philo Vance ("Murder Will Out")
Benson Murder Case, The (1930) ... Philo Vance
Street of Chance (1930) ... John D. Marsden ◦ 'Natural' Davis

Greene Murder Case, The (1929) ... Philo Vance
Charming Sinners (1929) ... Karl Kraley
Four Feathers, The (1929) ... kpt. Trench
Pointed Heels (1929) ... Robert Courtland
Canary Murder Case, The (1929) ... Philo Vance
Beau Sabreur (1928) Synowie pustyni ... Becque
Dragnet, The (1928) Życiowe rozbitki ... Dapper Frank Trent
Feel My Pulse (1928) ... Her Nemesis
Forgotten Faces (1928) ... Froggy
Last Command, The (1928) Ostatni rozkaz ... Lew Andriejew
Partners in Crime (1928) ... Smith
Interference (1928) ... Philip Voaze
Vanishing Pioneer, The (1928) ... John Murdock
Love's Greatest Mistake (1927) ... Don Kendall
Nevada (1927) ... Clan Dillon
New York (1927) ... Trent Regan
Paid to Love (1927) ... książę Eric
Señorita (1927) ... Ramon Oliveros
She's a Sheik (1927) ... Kada
Time to Love (1927) ... książę Alado
Special Delivery (1927) ... Harold Jones
Aloma of the South Seas (1926) ... Van Templeton
Desert Gold (1926) ... Snake Landree
Great Gatsby, The (1926) Wielki Gatsby ... George Wilson
Runaway, The (1926) Ucieczka ... Jack Harrison
Tin Gods (1926) ... Tony Santelli
Beau Geste (1926) ... Boldini
Sea Horses (1926) ... Lorenzo Salvia
White Mice (1926) ... Roddy Forrester
Beautiful City, The (1925) Piękne miasto ... Nick Di Silva
Faint Perfume (1925) ... Barnaby Powers
My Lady's Lips (1925) ... Scott Seldon
Too Many Kisses (1925) ... Julio
Dangerous Money (1924) ... książę Arnoldo da Pescia
Romola (1924) Florenckie noce ... Tito Melema (jako William H. Powell)
Under the Red Robe (1923) ... książę Orleanu (jako William H. Powell)
Bright Shawl, The (1923) ... Gaspar De Vaca
Outcast (1922) ... DeValle
Sherlock Holmes (1922) Sherlock Holmes ... Wells (jako William H. Powell)
When Knighthood Was in Flower (1922) ... Francis I (jako William H. Powell)