[s1e1] The Boy On The Bridge -

(Luke Evans): A newspaper illustrator who assists Kreizler in gathering evidence.

(Brian Geraghty): The police commissioner who provides covert support for the investigation while trying to clean up police corruption. [S1E1] The Boy on the Bridge

(Dakota Fanning): A strong-willed NYPD secretary who becomes a vital asset to the team. (Luke Evans): A newspaper illustrator who assists Kreizler