Clay A. Griffith (sometimes credited as Clay Griffith) is an American production designer and set decorator working mainly in the American film industry. He was born in 1967. He is the youngest child of actor-producer Peter Griffith and model-actress Nanita Greene. His older sister is actress Tracy Griffith and his half-sister is actress Melanie Griffith. He did the set decoration for Pacific Heights which Melanie starred in.