These guests were either huge stars before their appearance or after their appearance.
They said Alcala met Thornton and killed her while on a road trip, then buried her on a ranch in Granger, Wyo.
To viewers across the country, Rodney seemed like the answer to every woman's dreams.
Until they learned the truth about his In 1978, Rodney Alcala was a contestant on the "The Dating Game," one of America's most popular television shows at the time.
It was during these years that many single guests appeared on the show who would later go on to be big stars in their own right.
And we're not talking Ken Jennings kind of celebrities.