Mark O’Brien Bio, Affair, Married, Wife, Net Worth, Ethnicity, Age

Mark O Brien

Mark O’ Brien: Biography in Details

Who is Mark O’Brien?

Mark O’Brien is a Canadian actor. He is popular for his appearance in the Republic of Doyle as Des Courtney.

He was also seen as Tom Rendon in Halt & Catch Fire. His latest movie Blue Bayou is set to hit the cinema hall in June 2021.

How many sibllings does Mark O’ Brien have?

He was born on 7 May 1984 in St. John’s, Newfoundland, and Labrador, Canada. The name of his father is unknown and his mother’s identity is also not known.

However, his mom is a nurse and his dad is a truck driver. Similarly, he has three sisters who are older than him.

Moreover, his ethnic background is Caucasian. He studied at the Memorial University of Newfoundland and got his BA degree in English major.

Mark O’Brien- Professional Life, Career

Mark O’Brien is known for appearing in a comedy-drama series named the Republic of Doyle. In it, he played the character of Des Courtney from 2010 to 2014. The other cast of this series is Allan Hawco, Lynda Boyd, Sean McGinley, and more.

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This actor was also seen in the TV show Halt and Catch Fire as Tom. He appeared for 14 episodes. The other screen projects of The Last Tycoon (2017), Above and Beyond (2006), Hannibal (2014), and more.

Mark O’ Brien also wrote, directed, and produced screen projects like Downward Calling (2005), Lying Awake (2006), Better People (2012), Dennis (2015), and more.


Mark O’ Brien first appeared in the short film Downward Calling (2005) as John. Mark’s other short films are Epilogue, Brad, Better People, Dennis, Cut from the Same Cloth, Sweetieface, etc.

In 2009, he was seen as Will in Grown Up Movie Star, and in 2015 he played the role of Zach in Len & Company. His other notable big-screen projects are How It Ends, Kin, The Front Runner, Ready Or Not, Marriage Story, and many more.

Mark O’Brien- Net Worth, Salary

This actor has an estimated net worth of $5 million as of the year 2023. As per the reports, the average salary of an actor is $50k.

Similarly his spouse Georgina enjoys a net worth of $2 million. The net worth of three popular actors are,

Rumors, Controversy

This Republic of Doyle‘s star has not been involved in any sort of rumors or scandals yet and is doing great in his digital career.

How tall is Mark O’Brien?

Regarding Mark O’Brien’s body features, his height is 6 ft 2 inches and his body weight is unknown. Moreover, the colour of his eyes is blue and his hair is dark brown.

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Social Media

Mark O’Brien is available on social sites. His Twitter account is followed by over 21.3k followers and he joined it in March 2011.

But he is unavailable on TikTok and Facebook but his Instagram account has more than 27.3k followers.


  • Mark O’ Brien is 38 years old as of 2023.
  • His zodiac sign is Taurus.
  • He has a Facebook fan page.
  • He often calls his daughter P on his Instagram posts.

Mark O’ Brien’s Anniversary Dates

Year Date Day
2024 January Saturday
2025 January Monday
2026 January Tuesday
2027 January Wednesday
2028 January Thursday

Mark O’ Brien’s Birthday Dates

Year Date Day
2024 May Tuesday
2025 May Wednesday
2026 May Thursday
2027 May Friday
2028 May Sunday

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