Grant Imahara, the engineer host and robotics wizard of Discovery Channel's science show "MythBusters" and of Netflix's "White Rabbit Project" has died at 49.

"We are heartbroken to hear this sad news about Grant," a Discovery Channel statement confirming his death said. "He was an important part of our Discovery family and a really wonderful man. Our thoughts and prayers go out to his family."

"MythBusters" host Adam Savage tweeted Monday that he was "at a loss. No words" after hearing the news.

"I've been part of two big families with Grant Imahara over the last 22 years," Savage wrote. "Grant was a truly brilliant engineer, artist and performer, but also just such a generous, easygoing, and gentle PERSON. Working with Grant was so much fun. I'll miss my friend."

Los Angeles native Imahara graduated with an electrical engineering degree from the University of Southern California and worked for Lucasfilm's Industrial Light & Magic (ILM) for nine years, becoming chief model maker specializing in animatronics, Imahara helped to build the updated version of R2-D2 robot for the "Star Wars" prequels (and was one of only a handful of operators). He created models for films such as "Terminator 3: Rise of the Machines" and "The Lost World: Jurassic Park."

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Grant Imahara, host of #MythBusters and #WhiteRabbitProject, has died at 49. More details at the link in bio. (Photo: Twitter)

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Imahara starred in 11 episodes of the fan-created web series "Star Trek Continues," playing USS Enterprise officer Hikaru Sulu. In 2015's comedy horror film "Sharknado 3: Oh Hell No!" Imahara appeared as Agent Lodge.

He's the author of the 2003 book, "Kickin' Bot: An Illustrated Guide to Building Combat Robots." Imahara's own machine, Deadblow, was armed with a CO2-powered pickaxe lethal enough to become BattleBots champion.