William Horatio Powell was an American actor. A major star at Metro-Goldwyn-Mayer, he was paired with Myrna Loy in 14 films, including the popular 'Thin Man' series based on the Nick and Nora Charles characters created by Dashiell Hammett. Wikipedia*
On the C-SPAN Networks:
William Powell has one video in the C-SPAN Video Library; the first appearance was a 2004 Forum.