Dónal Finn

Biography

Dónal Finn is an Irish actor known for playing Mat Cauthon in the Prime Video fantasy series The Wheel of Time (2023). 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), originated the role of Orpheus in the West End production of Hadestown (2024), and co-starred as James Moriarty in the Guy Ritchie Amazon series Young Sherlock (2026).

Known For

The Witcher

as Nettly

Fantastic Beasts: The Secrets of Dumbledore

as Albert (Baker)

The Wheel of Time

as Mat Cauthon

SAS Rogue Heroes

as Eoin McGonigal

Young Sherlock

as James Moriarty

How to Build a Girl

as Karl Boden

Four Letters of Love

as Sean Gore

The Other Bennet Sister

as Mr. Hayward

Albion

as Gabriel

Angel

as Killian