Brooklyn Nine-Nine Wiki

Ethan Moorgil is the son of Miles Moorgil, writer of the "Nocturne Quarter" novels, and Jessica Moorgil.

Season Five[]

In Return to Skyfire, he is present when Jake Peralta and Terry Jeffords accidentally tell his father that Jessica had been cheating on him.

Due to his similar appearance to DC Parlov, who had an affair with Jessica, it is possible that Miles Moorgil is not his actual father - that is unconfirmed, however, and simply based on Jake and Terry's speculations.