A freelance writer and the partner of Don Hagarty. Unlike Don, Adrian is fond of Derry. Described, along with Don, as an effeminate gay man, he becomes the target of John “Webby” Garton, Steve Dubay, and Christopher Unwin, who beat him up and dump him in the Canal. Both Hagarty and Unwin see Pennywise the Clown on the night that Adrian is killed. Unwin tells Tom Boutillier that he saw Adrian’s body get carried away by the clown.