Dark Matters: Twisted But True

John Noble

Self - Host

Jim Ottaviani

Self - Nuclear Engineer & Science Historian

Sean Montgomery

Self - Neuroscientist

David Maiullo

Self - Physicist

Hywel Morgan

Charles Dawson / Dr. Flinn / J.P. Morgan / Knox / Thomas Edison / Wood

Ben Addis

Count von Paradis / Forrester / Frank / Laszlo / Robert Cornish

Jay Hosler

Self - Biologist & Author

Paula Cohen

Self - Geneticist

Robin Bowerman

Adams / Blondlot / Dr. Johnson / Policeman

Michael Malarkey

Frank Geyser

Oliver James

Tempalov

Isobel Pravda

Katherine Wiley

Jake Harders

Louis Slotin

Michael Stevens

Himself

Joshua Wichard

Young Pavlov (as Josh Wichard)