"Warren Derosa, also DeRosa, portrayed a British Whitelighter-Witch named Simon Marks in the season 8 episode The Last Temptation of Christy of Charmed."@en . . . . "Warren Derosa"@en . . . . . "Warren Derosa, also DeRosa, portrayed a British Whitelighter-Witch named Simon Marks in the season 8 episode The Last Temptation of Christy of Charmed."@en .