Trivia

He was a guitarist for the band The Enemies, a five piece band from his native Ireland that he co-founded in 2002. He had to quit in 2012 due to his work as an actor.

Father of his 2 children with wife Helen, a son Evan James O'Donoghue was born August 1, 2013, and a daughter Millie, born in May 2017.

He was among the final contenders to play Superman in 'Man Of Steel (2013)'. The role eventually went to Henry Cavill.

Appears in Christina Perri's "The Words" music video.

At the age of 16 went to Paris for a month to learn to speak French.

His wife Helen is a schoolteacher.

Supported the legalization of civil marriages between homosexuals in Ireland in name of Equality before the Law.

Vancouver, BC, Canada: Filming Once Upon A Time (November 2012)

Attended The Gaiety School of Acting in Dublin.

Parents are Con and Mary O'Donoghue.

Has a brother, named Allen.

In Once Upon a Time (2011), Colin O'Donoghue plays Killian Jones (aka Captain Hook), father of Alice, played by Rose Reynolds, despite her being only 10 years younger in real life.