Karen Bellinger (Self - Archaeologist & Historian), Natasha Billson (Self - Archaeologist & Historian), Jamie Clarke (Self - Adventurer), Tyler Irving (Self - Science Reporter), David O'Keefe (Self - Military Historian), Geoffrey Pyke (Self - Inventor Pykrete), Jeff Rose (Self - Archaeologist), SHINI SOMARA (Self - Engineer & Fluid Dynamicist), Jeff Teravainen (Narrator)