Mark Mardon (The Brave and the Bold)

Flash Villain(s)
This character, team, or organization, is or was primarily an enemy of any or all of the various incarnations of the Flash. This template will categorize articles that include it into the category "Flash Villains."

Rogues Gallery
This character is or was a member of the Rogues, a loose collection of enemies to the Flash, in any of its various incarnations. They are a team of highly effective super-villains with their own internal code that prevents them from killing speedsters.
This template will categorize articles that include it into the "Rogues Gallery members category."

Legion of Doom member
This character is or was a member of the Legion of Doom, a team of supervillains culled together for the purpose of conquering the world and defeating the Super Friends, in any of its various incarnations. This template will categorize articles that include it into the "Legion of Doom members" category.