The man known as "Singer" Smitone was a criminal informant in Dick Tracy's city. He had prominent teeth and typically wore round eyeglasses and a flat cap. When the woman Noana was discovered hidden aboard Stud Bronzen's boat, she revealed to Dick Tracy that she was intended to be sent to a man named Ramm. Tracy summoned Singer Smitone to police headquarters to find out more information about Ramm. Smitone cooperated and told Tracy where Ramm's restaurant was located.