Inferno was the disguises of Triple H and Stephanie McMahon, also known as the Authority, who wanted to be the champions of WWE's Muscle Moto X Off Road Challenge. They based Inferno on the legend of the death of a racer who died riding Dead Man's Curve in the 1930s.
He's a humanoid with red skin and red eyes. He wore a 1930s drivers outfit.
He was very aggressive and would fight anyone who got in his way. He was also determined to ultimately destroy the match so he would remain the top racer and keep his revenge.
Powers and abilities
Inferno has moves like a wrestler and drives his vehicle by remote control. He also used sulfur to create great amounts of smoke as a means of vanishing.
Scooby-Doo! and WWE: Curse of the Speed Demon
He first appeared ruining the match. Dusty tried to fight him but he was too strong. He was found by shaggy and scooby in the night ruining cars and was attacked by Miz, but defeated him. The next day he ruined the match once more but the Undertaker saved shaggy and scooby. Once defeated by the Undertaker in the last fight, he was revealed to be Triple H. In the second match it was Stephanie. The wanted to make sure they would win the race. The gang suspected he had to be a superstar when he broke out of Miz's wrestling hold, but he wasn't the only one behind all of this, and they all look at Stephanie who doesn't deny it. Paige doesn't get it, because they were both seen in the car during the races, but what they saw was an inflatable airbag dummy. Stephanie was driving the Company Car with remote motion control gear, so she could drive while sitting in the passengers seat, while Triple H controlled the Rig with the same gear. But in the second race, they swapped positions in case anyone suspected Triple H. When Inferno cut the oil line, he was really swapping the airbags between the dummies, which explained the talcum powder. He only cut the line to cover his tracks when Shaggy and Scooby saw him. Mr. McMahon explains that he wasn't at the races because he was practicing the national anthem, which he plans to sing at the closing ceremony. Stephanie says that the reason she did it was to show her father that she could win and make Muscle Moto X a huge success. He tells her that he always knew she could, and that the only reason he didn't want her to race was that he didn't want her to get hurt. He still turns them over to the authorities, but is confident that they'll learn their lesson and his lawyers will have it sorted out in a day since the couple really are that good.