Why did Charlie Chaplin wear a small mustache as the Little Tramp?

Charlie Chaplin adopted the small mustache as part of a deliberate effort to create a more effective screen image. After his initial character—a mercenary dandy—failed to showcase his talents to their best advantage, his studio head, Mack Sennett, ordered him to develop a more workable persona.

To achieve this, Chaplin improvised a distinctive costume that included a too-small coat, oversized pants, floppy shoes, and a battered derby. As a final touch to complete the look of the Little Tramp, he added a postage-stamp-sized mustache and a cane. This iconic ensemble debuted in his second film, Kid Auto Races at Venice (1914), and helped establish the character that would make him the biggest star of the silent era.1