Name	Known for
Anthony Boyle Arthur Guinness Arthur Guinness See fewer	Tolkien (2019)
Louis Partridge Edward Guinness Edward Guinness See fewer	Enola Holmes (2020)
Emily Fairn Anne Plunket Anne Plunket See fewer	Saturday Night (2024)
Fionn O'Shea Benjamin Guinness Benjamin Guinness See fewer	Handsome Devil (2016)
James Norton Sean Rafferty Sean Rafferty See fewer	Little Women (2019)
Niamh McCormack Ellen Cochrane Ellen Cochrane See fewer	Dungeons & Dragons: Honor Among Thieves (2023)
Seamus O'Hara Patrick Cochrane Patrick Cochrane See fewer	The Northman (2022)
Jack Gleeson Byron Hedges Byron Hedges See fewer	Game of Thrones (2011)
Dervla Kirwan Aunt Agnes Guinness Aunt Agnes Guinness See fewer	Ondine (2009)
David Charles-Cully Molly House Guest Molly House Guest See fewer	Boat Squad: The Legend of Martha King (2018)
Danielle Galligan Actress Actress See fewer	Strangers in the Park (II) (2017)
Jason Redshaw Molly House Guest Molly House Guest See fewer	Andy and the Band (2020)
David Wilmot Actor Actor See fewer	Anna Karenina (I) (2012)
Sam C. Wilson Eamon Dodd Eamon Dodd See fewer	Deep Cover (2025)