Mad Dog was a bounty hunter who is working for The League of Assassins.
He was then briefly absorbed into Leviathan and fought Batman Incorporated. He was later sent after the Suicide Squad to get a new born baby back. He knows the true identity of Deadshot and he was surprised to see him as a part of the Suicide Squad because he thought Deadshot was in Belle Reve.
Deadshot identified him as a bounty hunter after "the package," which is also the object of the Suicide Squads's mission in the Astrodome. While using thermal vision on his mask to see through smoke, Mad Dog shot Black Spider in the chest and blew up a diner with Black Spider and El Diablo inside. Before he could fire anymore shots and steal "the package", Harley Quinn released gas into the room to prevent further gunfire.
Mad Dog and his team found Deadshot and Harley Quinn at their hideout and chase them inside. Harley once again turned on the gas to prevent any gunfire inside the hideout. They evacuated the building which then explodes. Mad Dog then ran away but encountered King Shark and told him that he would give him anything he wants. King Shark then supposedly ate him and took his pin.
However, it was later revealed that he had not been killed and that he had given King Shark the pin in exchange for his life. He was eventually captured and joined the same Suicide Squad that he had fought. They were tasked with retrieving an official named George Carmody in England who had been taken by Strikeforce Europa, a mercenary group. They engaged the team and managed to extract Carmody but Mad Dog fell behind as the team was getting beaten. In order to escape, Waller detonated the bomb in Mad Dog's head, which also killed Guerrieroa.
- Mad Dog's appearance seems to be based on Lawrence Crock/Sportsmaster as he appeared in the animated series Young Justice.
- 3 Appearances of Mad Dog (Prime Earth)
- 1 Images featuring Mad Dog (Prime Earth)
- Quotations by or about Mad Dog (Prime Earth)
- Character Gallery: Mad Dog (Prime Earth)
Suicide Squad member
League of Assassins member