Thomas Andrew Tresser first appeared in The Brave and the Bold #166 (September 1980) and was created by Cary Burkett and Dan Spiegle.

Soseh Mykros first appeared in JSA Annual #1 (October 2000) and was created by David S. Goyer and Uriel Caton.

I figured that costume-wise, Nemesis would operate in basic black, but Paul added the touch that he would have a patch of the Scales of Justice on his costume.

[2] The character debuted in an eight-page backup story in The Brave and the Bold #166 (September 1980) written by Burkett and drawn by Dan Spiegle.

[3] The character was featured in one of the Final Crisis Aftermath limited series Escape, written by Ivan Brandon with art by Marco Rudy.

He was an applicant to an unnamed government agency whose brother Craig was an undercover agent infiltrating a criminal syndicate called "the Council".

He later returned only shortly to help retrieve Flag's kidnapped son and to assist in trying to uncover a secret government cabal.

[10] In Superman Secret Files 2004, Nemesis was revealed to be alive and well, impersonating Sarge Steel and apparently working for a shadowy Cabal.

One Year Later after the events of Infinite Crisis, Nemesis is seen aiding government agent Diana Prince, Wonder Woman in disguise, in the rescue of Donna Troy from several of the Amazon's villains.

[13] Tom ends any potential relationship aside of friendship with Diana once he discovers that she does not truly love him but instead wanted to use him to create a family.

[14] In the Final Crisis Aftermath: Escape storyline, Tresser is kidnapped and "reprogrammed" by the Global Peace Agency.

He wasn't slated to die in Catwoman, but I figured that if he was on his way out, his death might as well be handled by someone who liked and respected him – I tried really hard to show what a great character he was before I killed him in such a way as to ensure that should anyone change their mind, they could bring him back without too much trouble.