Stefano DiMera is a fictional character from the NBC soap opera Days of Our Lives, played by Joseph Mascolo. Created by Pat Falken Smith, Stefano was introduced on January 18, 1982 as the father of Tony DiMera (Thaao Penghlis) looking to expand his criminal empire to Salem. Stefano's early storylines included his feud with Roman Brady (Wayne Northrop), playing his children – Tony and Renée DuMonde (Philece Sampler) against one another when he is presumed dead, orchestrating a series of murders with his son (then his nephew) and Tony's deranged look-a-like André, and replacing the presumed dead Roman with the brainwashed John Black (Drake Hogestyn).