Atuação - Filmografia: 106
| 1. | Hollywood Remembers: Myrna Loy - So Nice to Come Home to (1991) ... Himself (archive footage) |
| 2. | That's Entertainment, Part II (1976) ... (archive footage) |
| 3. | America at the Movies (1976) ... Clarence 'Father' Day (archive footage) |
| 4. | It's Showtime (1976) ... (archive footage) |
| 5. | Fernes Jamaica (1969) |
| 6. | The Big Parade of Comedy (1964) ... (archive footage) |
| 7. | Mister Roberts (1955) ... Lt. 'Doc' |
| 8. | Como Agarrar um Milionário (1953) ... J.D. Hanley |
| 9. | The Girl Who Had Everything (1953) ... Steve Latimer |
| 10. | The Treasure of Lost Canyon (1952) ... Homer 'Doc' Brown |
| 11. | It's a Big Country (1951) ... Professor |
| 12. | Dancing in the Dark (1949) ... Emery Slade |
| 13. | Take One False Step (1949) ... Prof. Andrew Gentling |
| 14. | Ele e a Sereia (1948) ... Arthur Peabody |
| 15. | Nossa Vida com Papai (1947) ... Clarence 'Father' Day |
| 16. | The Senator Was Indiscreet (1947) ... Senator Melvin G. Ashton |
| 17. | Song of the Thin Man (1947) ... Nick Charles |
| 18. | Ziegfeld Follies (1946) ... Florenz Ziegfeld Jr. |
| 19. | Screen Snapshots: The Skolsky Party (1946) ... Himself |
| 20. | The Great Morgan (1946) ... Himself (voice) (uncredited) |
| 21. | The Hoodlum Saint (1946) ... Terence Ellerton 'Terry' O'Neill |
| 22. | The Heavenly Body (1944) ... William S. Whitley |
| 23. | The Thin Man Goes Home (1944) ... Nicholas 'Nick' Charles |
| 24. | The Youngest Profession (1943) ... Himself - Guest Star |
| 25. | Crossroads (1942) ... David Talbot, aka Jean Pelletier |
| 26. | Love Crazy (1941) ... Stephen 'Steve'/'Stevie' Ireland |
| 27. | Shadow of the Thin Man (1941) ... Nick Charles |
| 28. | I Love You Again (1940) ... Lawrence 'Larry' Wilson, aka George Carey |
| 29. | Another Thin Man (1939) ... Nick Charles |
| 30. | The Baroness and the Butler (1938) ... Johann Porok |
| 31. | Daughter of Shanghai (1937) ... Carib Waiter (uncredited) |
| 32. | Double Wedding (1937) ... Charles 'Charlie'/'Horse' Lodge |
| 33. | The Emperor's Candlesticks (1937) ... Baron Stephan Wolensky |
| 34. | The Last of Mrs. Cheyney (1937) ... Charles |
| 35. | After the Thin Man (1936) ... Nicholas 'Nick' Charles |
| 36. | The Ex-Mrs. Bradford (1936) ... Dr. Lawrence Bradford |
| 37. | Ziegfeld, o Criador de Estrelas (1936) ... Florenz Ziegfeld Jr. |
| 38. | Casado Com Minha Noiva (1936) ... Bill Chandler |
| 39. | Irene, a Teimosa (1936) ... Godfrey |
| 40. | Escapade (1935) ... Fritz |
| 41. | Reckless (1935) ... Ned Riley |
| 42. | Rendezvous (1935) ... Lt. William 'Bill' Gordon/Anson Meridan |
| 43. | Star of Midnight (1935) ... Clay 'Dal' Dalzell |
| 44. | Movie Memories (1935) ... (archive footage) |
| 45. | A Ceia dos Acusados (1934) ... Nick Charles |
| 46. | Evelyn Prentice (1934) ... John Prentice |
| 47. | Fashions of 1934 (1934) ... Sherwood Nash |
| 48. | The Key (1934) ... Capt. Bill Tennant |
| 49. | Vencido Pela Lei (1934) ... James W. 'Jim' Wade |
| 50. | The Kennel Murder Case (1933) ... Philo Vance |
| 51. | Private Detective 62 (1933) ... Donald 'Don' Free |
| 52. | Lawyer Man (1933) ... Anton 'Tony' Adam |
| 53. | Double Harness (1933) ... John Fletcher |
| 54. | Screen Snapshots (1932/I) ... Himself |
| 55. | Jewel Robbery (1932) ... The Robber |
| 56. | A Única Solução (1932) ... Dan Hardesty |
| 57. | High Pressure (1932) ... Gar Evans |
| 58. | Ladies' Man (1931) ... Jamie Darricott |
| 59. | Man of the World (1931) ... Michael Trevor |
| 60. | The Road to Singapore (1931) ... Hugh Dawltry |
| 61. | The Benson Murder Case (1930) ... Philo Vance |
| 62. | For the Defense (1930) ... William Foster |
| 63. | Paramount on Parade (1930) ... Philo Vance (Murder Will Out) |
| 64. | Shadow of the Law (1930) ... John Nelson (Jim Montgomery) |
| 65. | Behind the Make-Up (1930) ... Gardoni |
| 66. | Caminhos da Sorte (1930) ... John D. Marsden/'Natural' Davis |
| 67. | The Four Feathers (1929) ... Capt. Trench |
| 68. | The Canary Murder Case (1929) ... Philo Vance |
| 69. | Charming Sinners (1929) ... Karl Kraley |
| 70. | The Greene Murder Case (1929) ... Philo Vance |
| 71. | Pointed Heels (1929) ... Robert Courtland |
| 72. | Beau Sabreur (1928) ... Becque |
| 73. | Interference (1928) ... Philip Voaze |
| 74. | The Dragnet (1928) ... Dapper Frank Trent |
| 75. | A Última Ordem (1928) ... Lev Andreyev |
| 76. | Feel My Pulse (1928) ... Her Nemesis |
| 77. | Partners in Crime (1928) ... Smith |
| 78. | Forgotten Faces (1928) ... Froggy |
| 79. | The Vanishing Pioneer (1928) ... John Murdock |
| 80. | New York (1927) ... Trent Regan |
| 81. | Time to Love (1927) ... Prince Alado |
| 82. | Paid to Love (1927) ... Prince Eric |
| 83. | Señorita (1927) ... Ramon Oliveros |
| 84. | Love's Greatest Mistake (1927) ... Don Kendall |
| 85. | She's a Sheik (1927) ... Kada |
| 86. | Nevada (1927) ... Clan Dillon |
| 87. | Special Delivery (1927) ... Harold Jones |
| 88. | Aloma of the South Seas (1926) ... Van Templeton |
| 89. | Sea Horses (1926) ... Lorenzo Salvia |
| 90. | Beau Geste (1926) ... Boldini |
| 91. | Tin Gods (1926) ... Tony Santelli |
| 92. | Desert Gold (1926) ... Snake Landree |
| 93. | White Mice (1926) ... Roddy Forrester |
| 94. | The Great Gatsby (1926) ... George Wilson |
| 95. | The Runaway (1926) ... Jack Harrison |
| 96. | The Beautiful City (1925) ... Nick Di Silva |
| 97. | Faint Perfume (1925) ... Barnaby Powers |
| 98. | My Lady's Lips (1925) ... Scott Seldon |
| 99. | Too Many Kisses (1925) ... Julio |
| 100. | Romola (1924) ... Tito Melema (como William H. Powell) |
| 101. | Dangerous Money (1924) ... Prince Arnoldo da Pescia |
| 102. | The Bright Shawl (1923) ... Gaspar De Vaca |
| 103. | Under the Red Robe (1923) ... Duke of Orleans (como William H. Powell) |
| 104. | Sherlock Holmes (1922) ... Foreman Wells (como William H. Powell) |
| 105. | When Knighthood Was in Flower (1922) ... Francis I (como William H. Powell) |
| 106. | Outcast (1922) ... DeValle |