The Nightingale Killer is a mysterious serial killer and the main antagonist of the Frequency television series.


Not much is known about the Nightingale Killer, except that he is a vicious serial killer who targets nurses and uses prayer beads to tie his victim's hands and feet. In the original timeline, his murder spree ended in the late 90's but, in the altered timeline, he is still active in 2016.


As the main antagonist of the series, the Nightingale Killer has appeared, one way or another, in every episode so far.

Behind the scenesEdit

There is currently no behind the scenes info listed for this character.


  • His alias, the "Nightingale Killer", is likely a nod to famous British nurse Florence Nightingale.



External linksEdit

There are currently no external links listed for this character.