Name	Known for
Penn Jillette Self - Host Self - Host See fewer	Penn & Teller Get Killed (1989)
Teller Self - Host Self - Host See fewer	Penn & Teller: Bullshit! (2003)
Gary Coleman Self Self See fewer	Diff'rent Strokes (1978)
Mari Cova Self - Mayan Princess Self - Mayan Princess See fewer	Penn & Teller: Bullshit! (2003)
Patrick Geryl Self - Belgian Professor Who Believes the World Will End in 2012 Self - Belgian Professor Who Believes the World Will End in 2012 See fewer	The Ultimate 2012 Collection: Explore the Mystery of the Mayan Prophecy (2011)
Shannon McCabe Self Self See fewer	Streets (2017)
Mark Morris Self - Professor of Physics and Astronomy, UCLA Self - Professor of Physics and Astronomy, UCLA See fewer	Penn & Teller: Bullshit! (2003)
Ian O'Neill Self - Solar Physicist (as Dr. Ian O'Neal) Self - Solar Physicist (as Dr. Ian O'Neal) See fewer	Penn & Teller: Bullshit! (2003)
Jaysen Rand Self - Author, The Return of Planet-X Self - Author, The Return of Planet-X See fewer	Penn & Teller: Bullshit! (2003)
Paul Dale Roberts Self Self See fewer	The Unexplained Files (2013)
Randy Runkle Self - Showtime Executive Self - Showtime Executive See fewer	Dying Young (1991)
Mark Van Stone Self (as Professor Mark Van Stone) Self (as Professor Mark Van Stone) See fewer	Rushmore (1998)