Mark P. O'Connor

Acting

Biography

Musician - voice (tenor), piano, guitar, drums, bass, keys, ukulele, bouzouki, tiple. Performed at: Electric Picnic, Australian National Folk Festival, Illawarra Folk Festival, Major's Creek Folk Festival, Féile na Gréine, The Seige of Limerick, UL IWA Blas Summer School, Saint Mary's Cathedral, Splendour in the Grass Festival, Ludlow St NYC. Stage actor - Stage actor since 2010. Highlights include: Fr Flynn - 'Doubt: A parable', The Knave - '2 Gentlemen of Lebowski', Martin - 'Through a glass darkly', Laurence Sugden - 'Calender Girls', Stewart/Len/Roy 'Blackrock', Christy 'Lieutenant of Inismore' Screen actor since 2012. Productions worked on include: TV - Am an Ghátair, Game of Thrones S8, Foundation, Conversations with friends, Sherlock and Daughter, A Knight of the Seven Kingdoms. Feature Films - Calm with horses, I am Patrick, The Northman, Clueless in Ireland, Murder in G Major. Podcaster - Culture night 2020/2021, 'Remember Dolores Podcast', 'The Craic' on LCCR 100+ episodes.

Place of Birth: Ireland

Known For

85% Match2011TV

Game of Thrones

Seven noble families fight for control of the mythical land of Westeros. Friction between the houses leads to full-scale war. All while a very ancient evil awakens in the farthest north. Amidst the war, a neglected military order of misfits, the Night's Watch, is all that stands between the realms of men and icy horrors beyond.

81% Match2026TV

A Knight of the Seven Kingdoms

A century before the events of Game of Thrones, two unlikely heroes wandered Westeros: a young, naive but courageous knight, Ser Duncan the Tall, and his diminutive squire, Egg. Set in an age when the Targaryen line still holds the Iron Throne and the last dragon has not yet passed from living memory, great destinies, powerful foes, and dangerous exploits await these improbable and incomparable friends.

74% Match2025TV

The Rainmaker

Fresh out of law school, Rudy Baylor goes head to head with courtroom lion Leo Drummond as well as his law school girlfriend, Sarah. Rudy, along with his boss, Bruiser, and her disheveled paralegal, Deck, uncovers two connected conspiracies surrounding the mysterious death of their client's son.

73% Match2023HD

Haunted Harmony Mysteries: Murder in G Major

Former orchestra conductor Gethsemane Brown moves to Ireland to teach at a boarding school. After deciphering a musical message, she meets a renowned composer's ghost who is rumored to be behind the death of his lover.

70% Match2022HD

The Northman

Prince Amleth is on the verge of becoming a man when his father is brutally murdered by his uncle, who kidnaps the boy's mother. Two decades later, Amleth is now a Viking who's on a mission to save his mother, kill his uncle and avenge his father.

69% Match2022TV

Conversations with Friends

Two college students, Frances and Bobbi, forge a strange and unexpected relationship with a married couple.

69% Match2020HD

I Am Patrick: The Patron Saint of Ireland

I AM PATRICK peels back centuries of legend and myth to tell the true story of Saint Patrick. Through historical re-enactments, expert interviews and Patrick's own writings, experience the journey from man to saint.

67% Match2025TV

Sherlock & Daughter

Sherlock Holmes faces a sinister case risking friends' lives. American Amelia joins, seeking her father after her mother's murder. Despite differences, they solve a conspiracy and her mother's case.

63% Match2020HD

Calm with Horses

In darkest rural Ireland, ex-boxer Douglas 'Arm' Armstrong has become the feared enforcer for the drug-dealing Devers family, whilst also trying to be a good father to his autistic five-year-old son, Jack. Torn between these two families, Arm's loyalties are truly tested when he is asked to kill for the first time.