voice strengthening coach. He appeared on the myth "Breaking Glass". Celebrities In addition, several celebrity guests have been brought in to guest on the show, either for their high level of skill or knowledge in a certain area. : U.S. President Barack Obama asked Jamie and Adam to meet him in the White House Library, to which they happily obliged. He gave them the "Archimedes Solar Ray 3.0" myth, asking them to revisit for the third time the "Ancient Death Ray" myth and report the results, and was once again busted. : Ricky Jay was a world-record-holding card thrower from the myth "Killer Deck". : Roger Clemens is an MLB pitcher from the episode "Baseball Myths". : Ray Guy is an NFL punter from the myth "Helium Football". : Shirley Eaton is a James Bond actress from the myth "Goldfinger". : Jon Fitch is a MMA fighter from the myth "Coffin Punch". : Matt Cain is an MLB pitcher from the myth "Monk Magic". : Seth Rogen is an actor featured in the episode "Green Hornet Special". : Vince Gilligan is the creator and producer of Breaking Bad, and was in the episode "Breaking Bad Special". : Aaron Paul is an actor who plays Jesse Pinkman on the show Breaking Bad, and was in the episode "Breaking Bad Special". : Alton Brown is a celebrity chef who was featured on the episode "Food Fables". : James Cameron is a film director who appeared in the myth "A Titanic Tale". : Ron Siegel is a chef who appeared in the myth "Tenderizing Steak with Dynamite". : Michael Rooker is an actor who played Merle Dixon on The Walking Dead and was in the episode "Zombie Special". : Nik Wallenda is an acrobat, aerialist, daredevil, and high wire artist who appeared on the episode "Duct Tape Canyon". : Sophia Bush is an actress who appeared in the episode "Star Wars Special". : Johnathan Hillstrand is on the show Deadliest Catch and appeared in the Deadliest Catch Special. : Scott "Junior" Campbell is on the show Deadliest Catch and appeared in the Deadliest Catch Special. : Sean Casey is from the show Storm Chasers and appeared in the Storm Chasing Special. : Reed Timmer is from the show Storm Chasers and appeared in the Storm Chasing Special. Non-human assistants Buster Buster is a Hybrid II model crash test dummy that plays an important