This is a list of cast members of the television series MythBusters on the Discovery Channel. In addition to the core cast members, the MythBusters team includes several honorary MythBusters as well as some recurring guests.
Jamie Hyneman is a main cast member on MythBusters, along with Adam Savage. His demeanor on the show is calm, logical and no-nonsense, in stark contrast to Savage's more animated, impulsive and energetic persona. Hyneman is often exasperated by Savage's antics and he sometimes argues with him about the best approach to take. The two often have very different ideas for performing experiments and building devices. Hyneman's ideas tend to be more simplified than his co-host's, and he has a philosophy of reducing a solution to its most basic form, wherever possible. This difference has led to numerous competitions between the two presenters when testing myths, such as testing the "Goldfish Memory" myth and the "Levitation Machine" myth.
In numerous interviews, both Jamie and Adam have stated one of the reasons for the show's success is this dichotomy, and the fact that they can't stand each other, with their professional relationship being based more on mutual respect for each other's work. In a 2015 interview both said that they have completely separate lives, rarely, if ever, interacting with each other outside the show. Even while on set, they don't share meals or talk to each other off-camera. If there is an argument, they hash it out and move on, and they stated that while such arguments were a part of the early seasons, they successfully lobbied to have such situations on-camera significantly reduced.
A distinctive part of his appearance is his dark beret, white long-sleeve button-up shirt over a black T-shirt, no-rim glasses, and occasionally, mirrored sunglasses with side anti-glare guards. This, along with his walrus-style mustache and deep voice, are constant subjects for jokes by co-host Adam Savage and other team members. A sign hanging in his workshop reading "Clean Up or Die", visible in several episodes, expresses his desire to keep the shop clean and tidy.
In the "AC vs. Windows Down" myth, Hyneman revealed a food that he developed known as "the 444", a smoothie-like concoction of four fruits, four vegetables, and four grains. Despite skepticism by the rest of the crew, Hyneman described the 444's taste as "quite pleasant".