she had left (Episode Breaking Glass, Myth "Rolling Stone Gathers No Moss"). She was formerly the bassist of the band Fuzz, which would evolve into Weezer. Jessi Combs Jessi Combs was a cast member on the Build Team for a short time. Her arrival was announced on July 31, 2009, by the Discovery Channel when co-host Kari Byron went on maternity leave prior to giving birth to her first child. Byron left the show on the episode "Dumpster Diving" and Combs replaced her on the show. Combs was an American television personality and metal fabricator who appeared from 2005 to 2008 on the Spike show Xtreme 4x4. Prior to appearing there she appeared on the TLC program Overhaulin' as a guest fabricator. After high school Combs turned down a scholarship to attend an interior design school. In 2004, she graduated from WyoTech in the Collision & Refinishing Core Program at the top of her class. She also took the Street Rod Fabrication and Custom Fabrication and High Performance Powertrain programs. Combs died in August 2019 in a crash of a jet-powered high-speed race car in southeastern Oregon while attempting to set a new four-wheel land speed record, which was posthumously awarded to her in June 2020 by Guinness World Records. Jessie Nelson Jessie Nelson, or simply Jess, was a "Mythtern" (portmanteau of MythBusters and intern). She made her first appearance on MythBusters during the "Archimedes' Death Ray" episode as part of the girls' team on the small scale build-off. She appeared again in the "Whirlpool of Death" myth. In that episode she assisted Adam with the building of scale models to test the whirlpool, and towards the end of the episode got to hold his hand as he vomited in the whirlpool tank, adding her own memorable quote to MythBusters: "Smells like pizza". She then appeared in the "Mega Movie Myths" episode, where she helped find a car for the use with the ejector seat myth. She also appeared in "Air Cylinder of Death", "Christmas Lights", "Hindenburg Mystery", "Western Myths", "Walking on Water", "Birds in a Truck", "Bifurcated Boat", mixing the non-Newtonian fluid, "Pirate Special", "Special Supersized Myths", and "Superhero Hour". Staff Robert Lee Robert Lee (born ) is the narrator of the series, who shares the job of explaining experiments and facts with the hosts, often using a copious number of puns and humor. In some regions—such as the