- Brian Unger
- Â Self - Host 29 episodes, 2011-2012
- H.W. Brands
- Â Self - University of Texas at Austin / ... 10 episodes, 2011
- Mark Stein
- Â Self - Author, How the States Got Their Shapes / ... 9 episodes, 2011
- Seth Stein
- Â Self - Northwestern University 2 episodes, 2011
- George Wunderlich
- Â Self - National Museum of Civil War Medicine 2 episodes, 2011
- Robert Rosen
- Â Self - Author, A Short History of Charleston 2 episodes, 2011
- Richard Stewart
- Â Self - Bureau of Reclamation 2 episodes, 2011
- Peter Merlin
- Â Self - Aerospace Historian 1 episode, 2011
- Bart Crattie
- Â Self - Land Surveyor 1 episode, 2011
- Travis Wallbaum
- Â Self - Fisherman 1 episode, 2011
- Tom Lowe
- Â Self - Bannack State Park 1 episode, 2011
- Chonda Pierce
- Â Self - Christian Comedian 1 episode, 2012
- Jennifer Stefano
- Â Self - Tea Party Activist 1 episode, 2012
- Ted Gambordella
- Â Self - Republican Father 1 episode, 2012
- Ricky Gonzalez
- Â Self - U.S. Citizen 1 episode, 2012
- Sonya Race
- Â Self - Mother 1 episode, 2012
- Iris Gosling
- Â Self - Hatfield Descendant 1 episode, 2012
- David Struthers
- Â Self - Pig Farmer 1 episode, 2012
- Rhettman Mullis
- Â Self - Bigfoot Expert 1 episode, 2012
- Doug Jones
- Â Self - Civil War Re-enacctor 1 episode, 2012
- Doug Walker
- Â Self - Self-Proclaimed Hillbilly 1 episode, 2012
- Larry Wahrenbrock
- Â Self - Mountaineer & Reennactor 1 episode, 2012
- Kevin F. Kern
- Â Self - University of Akron 1 episode, 2011
- Harry Geisinger
- Â Self - Georgia House of Representatives 1 episode, 2011
- Claudia East
- Â Self - Author, Yreka: The First 80 Years 1 episode, 2011
- Kerry Altenbernd
- Â Self - Black Jack Battlefield 1 episode, 2011
- Keith Milam
- Â Self - University of Ohio 1 episode, 2011
- Walt Wolfram
- Â Self - North Carolina State University 1 episode, 2011
- D. Muenster
- Â Self - Furs & Clothing of Distinction 1 episode, 2011
- Keith Lowell Jensen
- Â Self - Atheist Comedian 1 episode, 2012
- Mike Stout
- Â Self - Former Union Steel Worker 1 episode, 2012
- Wayne Humphreys
- Â Self - Corn Farmer 1 episode, 2012
- Danielle Terry
- Â Self - Apprentice Gunsmith 1 episode, 2012
- Jay Reimer
- Â Self - Self-Proclaimed Redneck 1 episode, 2012
- Steve Kim
- Â Self - Exotic Dancer 1 episode, 2012
- Shane Copland
- Â Self - Canadian Citizen 1 episode, 2012
- Pearl Prihoda
- Â Self - Bigfoot Expert 1 episode, 2012
- Teddy Gambordella
- Â Self - Democratic Son 1 episode, 2012
- Betty Howard
- Â Self - McCoy Descendant 1 episode, 2012
- Eric Martinez
- Â Self - Civil War Re-enacctor 1 episode, 2012
- Colin Woodard
- Â Self - Author, The Lobster Coast 1 episode, 2011
- Tim Brumm
- Â Self - Heritage Hill State Historical Park 1 episode, 2011
- Scott Teodorski
- Â Self - National Park Service 1 episode, 2011
- Joseph Sawick Jr.
- Â Self - Suffolk County Comptroller 1 episode, 2011
- Cammy Montoya
- Â Self - Department of the Army. White Sands Missile Range 1 episode, 2011
- Chuck Magerl
- Â Self - Free State Brewery 1 episode, 2011
- Chuck Miller
- Â Self - Distillery Owner 1 episode, 2012
- Rick Wilberschied
- Â Self - Fur & Wildlife Trapper 1 episode, 2012
- Paige Tiller
- Â Self - West Virginia High School Student 1 episode, 2012
- Tony Schiano
- Â Self - Brooklyn New York Resident 1 episode, 2012
- Kathleen Brandt
- Â Self - Genealogist 1 episode, 2012
- Stacey Kane
- Â Self - Vice President of Marketing, California Tortilla Group 1 episode, 2012
- Gloria Minella
- Â Self - Doctor of Internal Medicine 1 episode, 2012
- Ken Hall
- Â Self - Bartender 1 episode, 2012
- Chris Ralph
- Â Self - Gold Prospector 1 episode, 2012
- Jonathan Edmiston
- Â Self - UFO Skeptic 1 episode, 2012
- Jim Hughes
- Â Self - Pastor 1 episode, 2012
- Cesidio Tallini
- Â Self - Self Proclaimed Governor, Independent Long Island 1 episode, 2011
- Rhonda Brophy
- Â Self - Owner, Red Moose Gift Gallery 1 episode, 2011
- Robert Marvinney
- Â Self - Director & State Geologist, Maine Geological Survey 1 episode, 2011
- Chris Hirvela
- Â Self - Heritage Hill State Historical Park 1 episode, 2011
- Rick Celata
- Â Self - KT Ordnance 1 episode, 2011
- Don Faber
- Â Self - Author, The Toledo War 1 episode, 2011
- Moses Smucker
- Â Self - Owner, Smucker's Quality Meats 1 episode, 2011
- Bob Phillips
- Â Self - President, California Tortilla Group 1 episode, 2012
- Eli Huddle
- Â Self - McCoy Descendant 1 episode, 2012
- Laurie Rice
- Â Self - Rabbi 1 episode, 2012
- Mark Stevenson
- Â Self - Boat Captain 1 episode, 2012
- Ray Harkins
- Â Self - Straightedger 1 episode, 2012
- Paul Miller
- Â Self - Union Electrician 1 episode, 2012
- Ben Ralph
- Â Self - Gold Prospector 1 episode, 2012
- Louise Van Ersvelde
- Â Self - Brooklyn Iowa Resident 1 episode, 2012
- Angie Rodesky
- Â Self - Genealogist 1 episode, 2012
- James Clarkson
- Â Self - UFO Investigator 1 episode, 2012
- Wayne Anderson
- Â Self - Sheriff Sullivan County 1 episode, 2012
- Michael Paras
- Â Self - Belt Railway Company of Chicago 1 episode, 2011
- Jimmy Wolford
- Â Self - McCoy Descendant 1 episode, 2011
- John A. Ricker
- Â Self - Poland Spring Preservation Society 1 episode, 2011
- Sam Chwat
- Â Self - Director, Sam Chwat Speech Center 1 episode, 2011
- Jennifer Brunner
- Â Self - Former Ohio Secretary of State 1 episode, 2011
- Ed Peden
- Â Self - Missile Base Homeowner 1 episode, 2011
- Chuck Harris
- Â Self - Curator, Ambajejus Boom House 1 episode, 2011
- Parker Glenn
- Â Self - Abstinence Advocate 1 episode, 2012
- Allyson Rameker
- Â Self - Real Estate Developer 1 episode, 2012
- Juanita Limas
- Â Self - Iowa Resident 1 episode, 2012
- Jerry Akers
- Â Self - Hatfield Re-enactor 1 episode, 2012
- Soxman
- Â Self - White Sox Fan 1 episode, 2012
- Tom Russell
- Â Self - Lawyer 1 episode, 2012
- Tucker Cholvin
- Â Self - College Democrat, Georgetown 1 episode, 2012
- Sarah Trojniak
- Â Self - Meteorologist 1 episode, 2012
- Rob Greer
- Â Self - Traditional Minister 1 episode, 2012
- Morgan Lucas
- Â Self - Drag Racer 1 episode, 2012
- Eric Pope
- Â Self - Zombie Fan 1 episode, 2012
- Donna Street
- Â Self - Dade County Resident 1 episode, 2011
- Wayne Monk
- Â Self - Lexington Barbecue 1 episode, 2011
- Michael B. Coleman
- Â Self - Mayor of Columbus 1 episode, 2011
- Sean Kelley
- Â Self - Eastern State Penitentiary Historic Site 1 episode, 2011
- Jack Strejc
- Â Self - Belt Railway Company of Chicago 1 episode, 2011
- Sonya Hatfield-Hall
- Â Self - Hatfield Descendant 1 episode, 2011
- Johanna Chapman
- Â Self - Atlanta Accent Management LLC 1 episode, 2011
- Lee Watford
- Â Self - Williamson Cattle Company 1 episode, 2011
- Dave Repasky
- Â Self - Oilman 1 episode, 2011
- Johnny Menicini
- Â Self - Line Cook 1 episode, 2012
- Doyle Van Meter
- Â Self - McCoy Re-enactor 1 episode, 2012
- Brian Mills
- Â Self - Viva Las Vegas Wedding Chapel 1 episode, 2012
- Paul Banks
- Â Self - Cubs Fan 1 episode, 2012
- Patrick Bigbie
- Â Self - Meteorologist 1 episode, 2012
- Amelia Wolf
- Â Self - College Republican, George Washington University 1 episode, 2012
- Cindy Faulkner
- Â Self - Adult Products Specialist 1 episode, 2012
- Victor Moray
- Â Self - Vampire Fan 1 episode, 2012
- Nancy Timbs
- Â Self - Iowa Resident 1 episode, 2012
- Victor Rameker
- Â Self - Real Estate Developer 1 episode, 2012
- Brandon Burnstein
- Â Self - Drag Racer 1 episode, 2012
- Dave Carnie
- Â Self - Former Editor-in-Chief, Big Brother Magazine 1 episode, 2011
- Barbara Zolli
- Â Self - Director, Drake Well Museum 1 episode, 2011
- Allen Townsend
- Â Self - Dade County Resident 1 episode, 2011
- Michael Webber
- Â Self - University of Texas as Austin 1 episode, 2011
- Dana Ste. Claire
- Â Self - Author, Cracker: The Cracker Culture in Florida History 1 episode, 2011
- Kevin Wood
- Â Self - Student, BYU 1 episode, 2011
- Elizabeth Giusti
- Â Self - Casino Waitress 1 episode, 2012
- Harold Crook
- Â Self - General Manager, Lonesome Pine Raceway 1 episode, 2012
- Tim Hugo
- Â Self - Virginia Republican Assemblyman 1 episode, 2012
- David Thompson
- Â Self - Ttweak, LLC. 1 episode, 2011
- Doyle Connor Jr.
- Â Self - Fifth Generation Cracker Cowman 1 episode, 2011
- Rick Tallini
- Â Self - Otto Cupler Torpedo Company 1 episode, 2011
- Peter Anderson
- Â Self - Secretary General, The Conch Republic 1 episode, 2011
- W. Paul Reeve
- Â Self - University of Utah 1 episode, 2011
- Gail Kaiser
- Â Self - Lake Mead Marina 1 episode, 2011
- Larry Meister
- Â Self - Cab Driver 1 episode, 2011
- Vaughn Edelson
- Â Self - Urban Explorer 1 episode, 2011
- Gary Chilcote
- Â Self - Director, Patee House Museum 1 episode, 2011
- Sara Smith
- Â Self - Casino Waitress 1 episode, 2012
- Scott Surovell
- Â Self - Virginia Deomocratic Assemblyman 1 episode, 2012
- C.R. Gibbs
- Â Self - Historian of the African Diaspora 1 episode, 2011
- Frederick Salvucci
- Â Self - Former Massachusetts Secretary of Transportation 1 episode, 2011
- Stan Cox
- Â Self - Author, Losing Our Cool 1 episode, 2011
- Randy Twaddle
- Â Self - Ttweak, LLC. 1 episode, 2011
- Dennis Wardlow
- Â Self - Former Mayor, Key West 1 episode, 2011
- Jim Ogle
- Â Self - General Manager, WIBW-TV 1 episode, 2011
- Terri Sewell
- Â Self - Representative, Alabama 1 episode, 2012
- Tim Kegerman
- Â Self - River Guide 1 episode, 2012
- Tim Tran
- Â Self - Homeowner 1 episode, 2011
- Neal Gamm
- Â Self - Forgottonia Governor 1 episode, 2011
- Peter Markantonis
- Â Self - Owner, West Alabama Ice House 1 episode, 2011
- Mike Panetta
- Â Self - Shadow Representative, D.C. 1 episode, 2011
- Michael Scott
- Â Self - Reed Gold Mine 1 episode, 2011
- John Fullilove
- Â Self - Smitty's Market 1 episode, 2011
- Sharon Robinson
- Â Self - Reed Gold Mine 1 episode, 2011
- Marty Aas
- Â Self - Job Service North Dakota 1 episode, 2011
- Ardie Davis
- Â Self - Kansas City Barbecue Society 1 episode, 2011
- Marty Rheault
- Â Self - CEO, Intelligent Insites 1 episode, 2011
- Debbie Hafele
- Â Self - North Dakota Resident 1 episode, 2011
- Aaron Hafele
- Â Self - North Dakota Resident 1 episode, 2011
- Teresa Ferrie
- Â Self - Job Service, North Dakota 1 episode, 2011
- Shannon Miller
- Â Self 1 episode, 2012
- Lynn Roberts
- Â Self 1 episode, 2012
- Sabin Lomac
- Â Self 1 episode, 2012
- Sharon Broome
- Â Self 1 episode, 2012
- Ethan Garber
- Â Self 1 episode, 2012
- Robert Burke
- Â Self 1 episode, 2012
- Vicki Green
- Â Self 1 episode, 2012
- Rodney Messina
- Â Self 1 episode, 2012
- Stephen Howard
- Â Self 1 episode, 2012
- Vernon Bush
- Â Self 1 episode, 2012
- Chamique Holdsclaw
- Â Self 1 episode, 2012
- Colin Beavan
- Â Self 1 episode, 2012
- Mark Ballard
- Â Self 1 episode, 2012
- Cheryl Haworth
- Â Self 1 episode, 2012
- John Russell
- Â Self 1 episode, 2012
- Clyde Bennett
- Â Outlaw 1 episode, 2012
- Chastity
- Â Urban School Teacher 1 episode, 2012
- Pogo Conspiracy
- Â Skater Punk 1 episode, 2012
- David
- Â Country Veterinarian 1 episode, 2012
- Gretchen
- Â Urban Farmer #1 1 episode, 2012
- Rick Jasper
- Â Referee 1 episode, 2012
- Mickey Jenkins
- Â Umpire 1 episode, 2012
- Keith
- Â City Pest Control Specialist 1 episode, 2012
- Mary
- Â Rural School Teacher 1 episode, 2012
- Montana
- Â Urban Farmer #2 1 episode, 2012
- Pat Neff
- Â Sheriff 1 episode, 2012
- Rachel
- Â Rural Farmer #2 1 episode, 2012
- Walter Steele
- Â Deputy 1 episode, 2012
- Tom
- Â Rural Farmer #1 1 episode, 2012
- Dana Jay Bein
- Â Self (uncredited) 1 episode, 2011
- Tess Barker
- Â Self - Contestant (uncredited) 1 episode, 2012
- Jeff Klinger
- Â Self - Contestant (uncredited) 1 episode, 2012