James Franklin "Jamie" Hyneman (born September 25, 1956) is an American special effects expert, best known for being the co-host of the television series MythBusters. He is also the owner of M5 Industries, the special effects workshop where MythBusters is filmed. He is known among Robot Wars devotees for his robot entry, Blendo, which, for a time, was deemed too dangerous for entry in the competition. He is one of the designers of the aerial robotic camera system Wavecam, used in sports and entertainment events. On May 16, 2010, he delivered the commencement address and received an honorary Doctorate of Engineering, from Villanova University.

Hyneman was born in Marshall, Michigan and raised in Columbus, Indiana. Describing his early life, Hyneman said "I was a problematic kid, to be sure. I left home when I was 14 and hitchhiked all over the country."

He earned a degree in Russian linguistics from Indiana University. He also received an honorary Doctor of Engineering degree from Villanova University. On November 25, 2011, Hyneman was awarded an honorary doctorate from the University of Twente (Enschede, Netherlands) for his role in the popularization of science and technology.

Chris Austin Hadfield, O.Ont, MSC, CD (born 29 August 1959) is a Canadian astronaut from the Canadian Space Agency (CSA) who was the first Canadian to walk in space. Hadfield has flown two space shuttle missions, STS-74 in 1995 and STS-100 in 2001. He has served as CAPCOM for both Space Shuttle and International Space Station (ISS) expeditions. He is currently training for a long duration stay on board the ISS, which will include command of Expedition 35 in 2012–13. He will be the first Canadian to command the ISS. He is enthusiastic about the prospects for a manned mission to Mars, and when asked if he would consider a one-way journey to Mars to be the first to visit, he said "I would be honoured to be given the opportunity."

Chris Hadfield was born in Sarnia, Ontario. His parents are Roger and Eleanor Hadfield who currently reside in Milton, Ontario. Hadfield was raised on a corn farm in southern Ontario and became interested in flying at a young age—from his own words in the interview to STRF.RU, he came to the idea of being astronaut when he was nine on the day of Apollo moon landing, which he had seen on TV then. Hadfield is married to his high-school girlfriend Helene Hadfield, and they have three adult children together.

Adam Whitney Savage (born July 15, 1967) is an American industrial design and special effects designer/fabricator, actor, educator, and co-host of the Discovery Channel television series MythBusters. His model work has appeared in major films, including Star Wars: Episode II - Attack of the Clones and The Matrix Reloaded. He is a prominent member of the skeptic community. He lives in San Francisco with his twin sons and wife, Julia.

Born in New York City, Savage was raised in Sleepy Hollow in Westchester County New York. He graduated from Sleepy Hollow High School in 1985. His father, Whitney Lee Savage (1928-1998), was a painter, filmmaker and animator known for his work on Sesame Street, and has a permanent exhibit in the Avampato Discovery Museum. His mother is a psychotherapist. His sister Kate Savage is also an artist. As a teenager in Sleepy Hollow, he routinely visited the local bike shop to have flat tires fixed. The shop showed him how to do the repairs himself. From this experience, Savage said, "I realized you could take a bike apart and put it back together and it wasn't that hard...I've been building and putting bicycles together since then."