Grant Imahara, well known for his appearance on Mythbusters, was also one of the middleweight division's most dominant drivers. Competing from 1999 to 2002, Grant and his robot Deadblow always progressed far in the shows, even being televised a few times. He has also recently hosted the Science Channel special Killer Robots, the first televised robotic combat event since 2004. His combat record is 10-7. Grant was also the host of the 2015 Robogames but has since retired from robotic combat. He was also one of three main judges on the new Discovery season of Battlebots.
Grant is former animatronics engineer and model maker for Industrial Light & Magic, where he worked on such movies as The Lost World: Jurassic Park, Star Wars: Episode 1 - The Phantom Menace, Terminator 3: Rise of the Machines, A.I.: Artificial Intelligence and Van Helsing. Grant also worked on The Matrix Reloaded and Revolutions. In addition to operating R2-D2 (one of only a handful of official operators), Grant has another claim to beloved-character fame: developing a custom circuit to cycle the Energizer Bunny's arm beats and ears at a constant rate. In fact, he's responsible for all the electronics installation and radio programming on the current generation of bunnies, even serving as the bunny's driver and crew supervisor on numerous commercials.