James Franklin Hyneman (; born September 25, 1956) is an American special effects expert who was co-host of the television series MythBusters alongside Adam Savage, where he became known for his distinctive beret, rimless glasses and walrus moustache. He is also the owner of M5 Industries, the special effects workshop where MythBusters was filmed.
He was an early competitor in Robot Wars, but his robot Blendo was deemed too dangerous for competition. He is the inventor of the Sentry, an unmanned firefighting robotic vehicle. He is also one of the designers of the aerial cable robotic camera system Wavecam used in sports and entertainment events.
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