George Raymond "Ray" Stevenson (born 25 May 1964) is an Northern Irish-English actor. He is known for playing Titus Pullo in the BBC/HBO television series Rome (2005–2007) and in film as Dagonet in King Arthur (2004). Stevenson has portrayed two Marvel Comics characters: Frank Castle/The Punisher in Punisher: War Zone and The Super Hero Squad Show; and Volstagg in 'Thor and its sequel Thor: The Dark World. In the film Kill the Irishman, Stevenson portrayed Cleveland mobster Danny Greene. In 2012 he appeared in the seventh season of Dexter as Isaak Sirko.