Walter Cartier started out young in boxing. He gave boxing exhibitions with his twin brother, Vincent Cartier, at the Woodstock, Connecticut, Country Fair, which were referred by their older brother. In the Navy, the Cartiers gave fighting exhibitions at venues like the Chicago Pier. After serving in WWII, he went to train to be a professional prizefighter. After being photographed for Look Magazine's "Prizefighter, " he was in director Stanley Kubrick's debut film, Day of the Fight (1951). After that, he landed some small roles in TV and movies, and died at the age of 73 in 1995.