Name	Known for
Robert Stack Self - Host Self - Host See fewer	Written on the Wind (1956)
George Agogino Self (as Dr. George Agogino) Self (as Dr. George Agogino) See fewer	Unsolved Mysteries (1987)
Molly Basler Barbra Piotrowski Barbra Piotrowski See fewer	The Karate Kid (1984)
Marion Bennett Self - Katherine's Brother-In-Law Self - Katherine's Brother-In-Law See fewer	Unsolved Mysteries (1987)
Peter Byrne Self Self See fewer	Shaawanoki: The Mystery of the Swamp Apes (1998)
Loren Coleman Self Self See fewer	On the Trail of Bigfoot: The Journey (2021)
Alex Cooper Self Self See fewer	Unsolved Mysteries (1987)
Dick DeGuerin Self - Barbra's Current Attorney (as Dick Deguerin) Self - Barbra's Current Attorney (as Dick Deguerin) See fewer	Sweet Dreams Do Come True (2018)
Don Devereux Self - Investigative Journalist Self - Investigative Journalist See fewer	Unsolved Mysteries (1987)
Marcella Easley Self - Trust Property Manager Self - Trust Property Manager See fewer	Unsolved Mysteries (1987)
Suzanne Finstad Self - Author Self - Author See fewer	The Mystery of Natalie Wood (2004)
Kurt Fritzler Self Self See fewer	Unsolved Mysteries (1987)
Liela Heck Self - Alex's Daughter Self - Alex's Daughter See fewer	Unsolved Mysteries (1987)
Margaret Heck Self - Alex's Wife Self - Alex's Wife See fewer	Unsolved Mysteries (1987)
Larry Larimer Self - Estate Administrator Self - Estate Administrator See fewer	Unsolved Mysteries (1987)
Reinhold Messner Self Self See fewer	Mord am Unmöglichen
Mary Rygg Katherine Bennet Katherine Bennet See fewer	Unsolved Mysteries (1987)
Irv Weissman Self - Barbra's Former Attoney Self - Barbra's Former Attoney See fewer	Unsolved Mysteries (1987)
Ken Williamson Self - Houston Police Department Self - Houston Police Department See fewer	Unsolved Mysteries (1987)
Ted Wilson Self - Assistant District Attorney Self - Assistant District Attorney See fewer	Unsolved Mysteries (1987)