Season 1 • "Stairway to Heaven" —
Temple Grandin,
autistic college professor and expert on humane cattle slaughter techniques • "The Killer Inside Me" —
Sondra London, American true crime author. • "I Dismember Mama" —
Saul Kent, promoter of
cryogenic immortality • "The Stalker" —
Bill Kinsley, employer and victim of the disgruntled postal worker
Thomas McIlvane • "The Parrot" —
Jane Gill, victim of a murder with a possible avian eyewitness • "Eyeball to Eyeball" —
Clyde Roper, authority on the
giant squid • "Smiling in a Jar" —
Gretchen Worden, director of the
Mütter Museum of medical oddities in Philadelphia • "In the Kingdom of the Unabomber" —
Gary Greenberg,
Unabomber pen pal and would-be biographer • "Mr. Debt" —
Andrew Capoccia, lawyer for credit-card debtors • "You're Soaking In It" —
Joan Dougherty, crime scene cleaner • "The Little Gray Man" —
Antonio Mendez, retired
CIA operative and master of disguise
Season 2 • "Harvesting Me" —
Josh Harris, internet entrepreneur and
television addict also featured in the
documentary We Live in Public • "The Smartest Man in the World" —
Chris Langan, bar
bouncer with the alleged world's highest IQ • "The Only Truth" —
Murray Richman, lawyer to New York mobsters • "One in a Million Trillion" —
Rick Rosner, professional high school student and
Who Wants to Be a Millionaire? contestant • "Mr. Personality" —
Dr. Michael Stone,
forensic psychologist and
homicide aficionado, host of
Most Evil • "Leaving the Earth" —
Denny Fitch,
DC-10 pilot and one of the heroes onboard
United Airlines Flight 232 ==References==