There are two artists with the name Dooley Wilson. 1. Arthur "Dooley" Wilson was most famous for playing the character of Sam in the film Casablanca. Wilson played the song As Time Goes By in the film, and released his own version of it. In the film, the song is announced a few times by Humphrey Bogart saying 'Play it again, Sam'. The phrase got even more famous as the song, and was used, abbreviated, as the name of the record label Pias.