written and produced by Peter A. Steen ; director, Bruce Nash ; created by Bruce Nash ; produced by Actuality Productions, Inc. for the History Channel
producer, Melody Shafir ; producer/co-writer, Michael Guillen ; produced by Popular Arts Entertainment Inc. for History Channel Television Network Productions ; A & E Television Networks
produced, written & directed by Joanna Chejade-Bloom, Doug Ross ; series director, Mark Cannon ; series producer, Randy Martin ; produced by KPI ; for the History Channel
produced by Perpetual Motion Films for the History Channel ; produced & directed by Monte Markham ; written by Lee Fulkerson ; producer, Klaire Markham ; producer/Japan, John Junkerman