Adam Savage
Self - Host (23 eps)
Jamie Hyneman
Self - Host (23 eps)
Kari Byron
Self - Host (23 eps)
Tory Belleci
Self - Host (23 eps)
Grant Imahara
Self - Host (23 eps)
Robert Lee
Self - Narrator (voice) (23 eps)
Seth Rogen
Self (1 eps)
Barack Obama
Self (1 eps)