- "If I have to meet me maker - I'm goin' out in style!"
Brendon Doyle, also known as Mauler, is a mercenary working for A.I.M.
Mauler infiltrated and appeared on the Helicarrier under Kearson DeWitt's orders, placing bombs all over the aircraft to destroy it. Iron Man arrived at the Helicarrier, and managed to disarm the bombs and defeat Mauler, blasting a bomb at Mauler to do it.
Iron Man had to defeat Mauler once again while disarming multiple bombs in the process. Seeing that he was outmatched, Mauler informed Iron Man of the approaching Arc Armiger and offered to help him defeat it. Iron Man did not accept this offer and instead interrogated Mauler about DeWitt's plans while War Machine defeated the Armiger.
- Tony Stark/Iron Man †
- James Rhodes/War Machine
- In the comics, Brendan Doyle is the third incarnation of Mauler, with Turk Barrett being the second.