**Walter Woolf King (1891-1966)** was an American actor and singer, known for portraying characters who were often elegant, cunning, or subtly antagonistic. His film career saw him excel in roles as a romantic rival, impresario, or authoritative figure, often imbued with a touch of arrogance or conceit.

He is particularly remembered for his appearances in Marx Brothers films, where he created some of his most iconic roles. Among these were Rodolfo Lassparri, the rival tenor in *A Night at the Opera* (1935), and Mr. Morgan in *A Day at the Races* (1937). Possessing a notable baritone voice, King was a familiar figure in musicals and comedies of the era, though his repertoire extended to character roles in various genres.