Gavin Walker

 was an old friend of Lillian Hawthorne. He was a self-made man and knew that Peter Mathis was also a self-made man. He organised a fancy dress party at his casino in Monte Carlo in 1966. Erimem didn't like him as he had her father Pharaoh Amenhotep II's diamond, the Veiled Leopard. (AUDIO: The Veiled Leopard)