Simon is a lieutenant, strict and demanding, he always wears a mask with a skull.  OTG-141 soldier.  His faithful comrade Soap, Captain Price.  Does not show emotions, is aggressive, may use force. Born in Manchester, Simon Riley joined the Special Air Service and spent much of his career flying numerous secret missions in secret locations.  "Ghost" began to hide his identity under a trademark skull mask in order to maintain anonymity in combat operations.