Mr Hyde was one of the members of the Sisyphean Society's senior circle in the Land of Fiction. The Master killed him along with the other members of the Society. (COMIC: Character Assassin)
Behind the scenes
Mr Hyde was the alter-ego of Dr Jekyll in Robert Louis Stevenson's novella Strange Case of Dr Jekyll and Mr Hyde.
He was played by Dougray Scott in a 2008 television film, Dr. Jekyll and Mr. Hyde.
The 2007 series Jekyll, a sequel to this story, was written in its entirety by Steven Moffat. A more recent TV drama, Jekyll and Hide in 2015, has both characters' love interest, Lily, played by Stephanie Hyam.