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Dónal Finn is an Irish actor known for playing James Moriarty in the Guy Ritchie Amazon series Young Sherlock (2026) and the romantic lead Tom Hayward in The Other Bennett Sister (2026). A graduate of the London Academy of Music and Dramatic Art, he has also appeared in SAS: Rogue Heroes (2022), Fantastic Beasts: The Secrets of Dumbledore (2022), played Mat Cauthon in the Prime Video fantasy series The Wheel of Time (2023), originated the role of Orpheus in the West End production of Hadestown and appeared as a village priest in the Paul Greengrass movie The Uprising (2026).
