Younger brother of Samuel Irons.
Grandson of Cyril Cusack and Maureen Cusack.
Nephew of Niamh Cusack, Sorcha Cusack, Paul Cusack, Pádraig Cusack and Catherine Cusack.
Son of Jeremy Irons and Sinéad Cusack.
Was a model for Burberry.
Graduated from the Guildhall School of Music and Drama in 2008.
Maternal half-brother of Irish politician Richard Boyd Barrett.
Good friends with his The Host (2013) co-star, Jake Abel.
He is of English and Irish descent.