The 3rd Voice is a 1960 American neo noir thriller crime drama film directed and written by Hubert Cornfield, who also produced the film with Maury Dexter. It is based on the novel All the Way by Charles Williams and stars Edmond O'Brien, Laraine Day, and Julie London.

Olga San Juan was an American actress and comedian. Born in Brooklyn, she began her brief film career with Paramount Pictures after being scouted at Copacabana. She performed in several Hollywood musicals in the 1940s and on Broadway in Paint Your Wagon (1951).