Thania Papas St. John is an American television producer and writer. For much of her career she has written and produced for a number of notable television series including 21 Jump Street, Life Goes On, Lois & Clark: The New Adventures of Superman, Buffy the Vampire Slayer, Roswell, Wild Card, Huff, Eureka, Drop Dead Diva and Unnatural History. In 1997 she created the television series Crisis Center. She adapted The Witcher short stories into Netflix's The Witcher tv series, released in 2019.