Malcolm Merlyn (Arrowverse)

Malcolm Merlyn is the main antagonist of the first season of the tv series Arrow. He is the father of Tommy Merlyn Thea Queen, Oliver's best friend and sister, a close associate of Queen's father Robert and mother Moira as well as his primary nemesis. He is the brain behind the Undertaking. He is based on the character of Merlyn the Archer from the comics. Malcolm is portrayed by John Barrowman.

Early History
Malcolm was once a well-meaning and kind man and a rising businessman. But after his wife Rebecca died after being mugged in the Glades, the criminal part of Starling City, Malcolm left his young son Tommy behind and went on training in the martial arts.