The Steel Avenger (sometimes written as Steel Avenger) was a heavyweight robot, driven by Team Steel Avenger, formerly known as The Pneumatic Fanatics. The team competed in Series 3, 4, 5 and 7 of Robot Wars, also entering in both series of Extreme. The team did not enter Series 6, having been exhausted after all the repairs they had to do after Series 5 and Extreme 1.