Starring: Nikolaj Coster-Waldau, Zuleikha Robinson, Alexie Gilmore John Amsterdam is an NYPD homicide detective who is 400 years old, but has the appearance of a 35-year-old. He was a Dutch soldier in Manhattan in the year 1642, when he stepped in front of a sword to save the life of a Native American girl during the massacre of her tribe. The girl in turn rescued Amsterdam by weaving a spell that conferred immortality upon him.