and bug spray could cause injury but would be unlikely to kill someone if dropped into a campfire. Mythdog Bo Mythdog Bo is a small dog that appears in the 2017 revival of the show. She does not provide much help and only appears when she walks on set, and her random appearances have caused some jokes. Buster II/Jr Buster Jr is the version of Buster in the 2017 version of the show. He was introduced in the second episode, where they needed a criminal to block a propane chimney. They needed the replacement after the original was fired into a brick wall with a rocket. References General references External links MythBusters cast members Cast