Sergeant Doyle is Captain Connor's right hand, working closely under his directives and dissatisfied with Commissioner Roosevelt's policy.
Appearances
The Alienist
Guest cast, played by Martin McCreadie
- Episode 1x01: The Boy on the Bridge (Jan 22, 2018)
- Episode 1x02: A Fruitful Partnership (Jan 29, 2018)
- Episode 1x03: Silver Smile (Feb 5, 2018)
- Episode 1x05: Hildebrandt's Starling (Feb 19, 2018)
- Episode 1x06: Ascension (Feb 26, 2018)
- Episode 1x07: Many Sainted Men (Mar 5, 2018)
- Episode 1x08: Psychopathia Sexualis (Mar 12, 2018)
- Episode 1x09: Requiem (Mar 19, 2018)
- Episode 2x01: Ex Ore Infantium (Jul 19, 2020)
- Episode 2x02: Something Wicked (Jul 19, 2020)
- Episode 2x05: Belly of the Beast (Aug 2, 2020)
- Episode 2x06: Memento Mori (Aug 2, 2020)
- Episode 2x07: Last Exit to Brooklyn (Aug 9, 2020)
- Episode 2x08: Better Angels (Aug 9, 2020)