- James D'Arcy shares his birthday with Chad Michael Murray.
- James D'Arcy previously worked with Hayley Atwell in Mansfield Park and later worked together again in Chicken/Egg, a short film he wrote and directed.
- James D'Arcy previously worked with Ralph Brown in Exorcist: The Beginning
- James D'Arcy later worked with Enver Gjokaj, Wynn Everett, Currie Graham, Tara Butters and Michele Fazekas in Kevin (Probably) Saves the World.
- James D'Arcy later worked with Toby Jones in The Snowman