Ηθοποιοί επεισοδίου
Dan AykroydSelf - Host
Adam RichmanSelf - TV Host/Historian
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Sami JarroushSelf - TV Host, Historian
Hakeem Muata OluseyiSelf - Astrophysicist/Author
★
Mitch HorowitzSelf - Historian
★
Edward T. O'DonnellSelf - Historian
Don WildmanSelf - TV Host/Historian
Paul Matt SutterSelf - Physicist/Author
★
Austin RogersSelf - Jeopardy! Champion