Suspense - Too Many Smiths (Hume Cronyn).

The Suspense radio episode titled "Too Many Smiths" aired on June 13, 1946, featuring Hume Cronyn as Charles Wallingford, a janitor at an advertising agency. The plot revolves around a toothpaste company's contest offering a $25,000 prize for the best slogan. Wallingford discovers a memo revealing the winner's name—Pat Smith from Boston—before the public announcement. Seeing an opportunity, he devises a scheme to claim the prize by finding and impersonating the winner.