energy, he possesses fellow Golden Age speedster Max Mercury. After battling Jay and Impulse, Max time-travels to an unknown destination. In The Flash: Rebirth #4, Max escapes from the Speed Force and is rejuvenated by Wally West's energy; this allows him to return to Earth in a new body. Another Golden Age Reverse-Flash is a robot whose only appearance was in one panel of The Flash #134 (February 1998), where he is defeated by Garrick. Eobard Thawne Professor Eobard Thawne first appeared in The Flash #139 (September 1963). The archenemy of Barry Allen, he is the first to take on the name Professor Zoom, and oftentimes the Reverse-Flash. Hunter Zolomon Hunter Zolomon (also known as Zoom) first appeared in The Flash: Secret Files & Origins #3 (November 2001). The archenemy of Wally West, he is the second supervillain to be called the Reverse-Flash. Unlike all other Reverse-Flashes, he did not gain his superspeed from the Speed Force but due to an accident with the Cosmic Treadmill. Zolomon was essentially "derailed" from the time line, allowing him to control the rate at which he moves in time, which can make him faster than any speedster. Thaddeus Thawne Thaddeus Thawne (a.k.a. Inertia and later Kid Zoom) first appeared in Impulse #51 (August 1999), and was created by Todd DeZago and Mike Wieringo. Another character not called the Reverse-Flash, he is a clone of Bart Allen. Inertia first fought Impulse. When Bart aged five years after Infinite Crisis and became the Flash, Inertia fought his genetic template again. Inertia was responsible for Allen's death; Wally West returned, taking revenge by paralyzing Inertia and imprisoning him in the Flash Museum. In Final Crisis: Rogues' Revenge, he is used by Libra and Zoom to try to get the Rogues to join the Secret Society. Inertia steals Zoom's powers, calls himself Kid Zoom, and is killed by the Rogues, who blamed him for making them kill Bart. When asked who created Inertia, Ethan van Sciver wrote that he could only accept five percent of the credit; the remaining credit belonged to Mike Wieringo (20 percent), Grant Morrison (25 percent) and Todd DeZago (50 percent). According to van Sciver, Inertia's appearance is an inverted depiction of Impulse. Inertia initially appeared in Impulse #50: "First Fool's" (July 1999), followed by #51: "It's All Relative" (August 1999). His greatest character development was in #53: "Threats" (October 1999). Inertia was