Claim: Mark Wilding is a producer and screenwriter who has worked on the series Grey's Anatomy and the Charmed.
Evidence: Mark Wilding is an American television producer and screenwriter. He was nominated for two Emmys for his work as executive producer on the series Grey's Anatomy, and won a Writers Guild of America Award for Best New Series as a writer on the same show. He has also worked on the supernatural drama Charmed as the supervising producer and co-producer for a total of over thirty episodes, as well as screenwriter for another four. 
Mark Wilding is an American television producer and screenwriter. He has also worked on Private Practice and Charmed. Wilding has worked on medical drama series Grey's Anatomy since its debut in 2005, serving as executive producer for five episodes and co-executive producer for over fifty episodes.