David S. Goyer
Nemesis is the name of two fictional characters in the DC Comics universe. Thomas Andrew Tresser first appeared in "The Brave and the Bold" #166 (September 1980) and was created by Cary Burkett and Dan Spiegle. Soseh Myrkos first appeared in "JSA Annual" #1 (October 2000) and was created by David S. Goyer and Uriel Caton.