When he auditioned, director John Moore liked him immediately! He had
to sit on a swing with a terrifying dog on the ground next to him (for
the audition). The expression on his face was perfect. The studio used
the tape of Seamus' audition for the teaser trailer.
Spent two months in Prague, Czech Republic when filming The Omen (2006).
Was born in and spent his first four years in New York.
His parents are both of approximately three quarters Irish heritage. The rest of Seamus' ancestry is English, Scottish, German, and distant Dutch.
Made his first on-screen appearance at age one month