Grant Imahara, the electrical engineer and roboticist best known for his roles on popular science shows "Mythbusters" and "White Rabbit Project", has died.

The 49-year-old suffered a sudden brain aneurysm, according to The Hollywood Reporter.

"We are heartbroken to hear this sad news about Grant," said a Discovery Channel — the distributor of Mythbusters — spokesperson, according to Variety.

"He was an important part of our Discovery family and a really wonderful man. Our thoughts and prayers go out to his family."

"Mythbusters" and "White Rabbit Project"

Imahara co-hosted more than 200 episodes of "Mythbusters", reported Variety.

His stint on the show started in 2005 — when the series was in its third season — and lasted till 2014.

As part of the team, Imahara used his expertise to design robots and operate the computers and electronics needed to test myths, wrote The Hollywood Reporter.

More recently, he reunited with former "Mythbusters'" alumni Kari Byron and Tory Belleci to host Netflix's "White Rabit Project".

Before his turn as a TV star, Imahara had worked for Lucasfilm's THX division before he joined Industrial Light and Magic.

Variety reported that Imahara contributed to blockbusters such as the "Star Wars" prequel trilogy, "Jurassic Park", "The Matrix Reloaded", and "The Matrix Revolutions".

Tributes from colleagues

After news of Imahara's death broke, his former co-host Byron tweeted a picture of Imahara, Belleci, and herself, with the description: "Sometimes I wish I had a time machine."

Somedays I wish I had a time machine. ⁦@ToryBelleci⁩ ⁦@grantimahara⁩ pic.twitter.com/o9FRE2l16W

— Kari Byron (@KariByron) July 13, 2020

She followed up her tweet with other pictures featuring Imahara.

Former Mythbusters co-host, Adam Savage also wrote on Twitter that he was "at a loss".

I’m at a loss. No words. I’ve been part of two big families with Grant Imahara over the last 22 years. 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.

— Adam Savage (@donttrythis) July 14, 2020

"No words. I've been part of two big families with Grant Imahara over the last 22 years. Grant was a truly brilliant engineer, artist, and performer, but also just a generous, easygoing, and gentle person."

"Working with Grant was so much fun. I'll miss my friend," added Savage.

Top image from Grant Imahara's Facebook and Kari Byron's Twitter