Sean Harmon bio- The eldest son of Mark Harmon

Who is Sean Harmon?

Sean Harmon is an American actor, director, stunt coordinator, and the first son of actor Mark Harmon and actress Pamela Dawber.

He is famous for his role in NCIS, where he plays a character named Gibbs, a younger version of his father’s character in the series.

Learn everything you need to know about Sean Harmon’s personal and professional life.

Sean Harmon Biography, net worth, family and career
Sean Harmon Biography

Quick facts

Full nameSean Thomas Harmon
BirthdayApril 25, 1988
Age35 years old
Sun signAries
TraitsPositive: fearless warrior, disciplined, and extrovert
Negative: Lack of patience, temper, impulsive and assertive
BirthplaceBurbank, California, USA
Currently residingBurbank, California, USA
ParentsMark Thomas Harmon (father),
Pamela Dawber (mother)
GrandparentsThomas Dudely Harmon (paternal grandfather),
Elyse Knox (paternal grandmother)
SiblingsTy Christian Harmon (younger brother)
Marital statusMarried
SpouseCourtney Prather
EducationNotre Dame High
ProfessionActor, stunt Coordinator, stunt player, writer, producer, and director
Net worthUSD 10 million
Social mediaInstagram
Eye colorGrey
Hair ColorBrown
Height5’11” inches (182 cm)


Childhood photo of Sean Harmon and Ty Harmon
Childhood photo of Sean Harmon and Ty Harmon

Sean Harmon was born on April 25, 1988, in Burbank, California, to Mark Harmon and Pamela Dawber.

Based on his birth date, he is a Taurus.

A Taurus born this month is known to have a loving nature, commitment, and strong determination. Such traits might explain his hard work to create his identity without his father’s help.

Sean and his brother attended Notre Dame High, a private school in Sherman Oaks, California.

It is assumed that Sean began his career after graduating high school, as his parents did.

He is 5’11” inches (182 cm) and is muscular with a mesomorph body type. Apart from his acting career, Sean also likes to kickbox and surf.

He has a beautiful pair of grey eyes, brown hair, and a charming smile, just like his father.

Read about the model and influencer Janet Guzman here

Sean Harmon Family

Thomas Dudely Harmon (Grandfather)

Tom Harmon (Thomas Dudely Harmon) is a star college football player in Michigan’s Wolverine history. In addition, Tom Harmon worked as a sports broadcaster on ABC and American Information Radio networks.

Thomas Dudley Harmon aka Tom Harmon

Elyse Knox (Grandmother)

Elyse Knox

She was a ’90s American fashion designer, model, and actress who worked in hit movies like ‘The Mummy’s Tomb’ and ‘Hit the Race.’

Mark Thomas Harmon (father)

Mark Harmon and Pam Dawber parents of Sean
Mark Harmon and Pam Dawber, parents of Sean

His father, Mark Thomas Harmon, is one of the highest-paid TV actors and is best known for his role in a TV show called St. Elsewhere and his role in Chicago Hope and NCIS.

Pamela Dawber (mother)

On the other hand, Pamela Dawber has also worked on several hit projects like Mork & Mindy and My Sister Sam.

Ty Christian Harmon (Younger brother)

Ty Christian Harmon brother of Sean Harmon
Ty Christian Harmon with his girlfriend

Sean Harmon has a younger sibling named Ty Christian Harmon (born on June 25, 1992), who works in the entertainment industry as an actor, screenwriter, and even director. His first acting gig was starring in a short film called ‘Catholic Schoolgirl Chainsaw Showdown,’ an action-horror film directed by himself.

Courtney Prather (wife)

Courtney Prather showing her engagement ring
Courtney Prather showing her engagement ring given by Sean

Sean met his wife, Courtney, at an art gallery in Santa Monica. He was attracted to her and gathered his courage after a drink to approach her. Sean Harmon offered Courtney Prather a ride to her and got her number.

He has been open about showing his affection for Courtney on social media. On October 30, 2012, Sean was first seen with Courtney Prather on his date for the inauguration ceremony for Mark Harmon at the Hollywood Walk of Fame in Los Angeles, California..

Courtney in his engagement photo
Sean proposing Courtney for marriage

On July 9, 2021, Sean brought her to his ranch, where they spent time riding, shooting, and rafting the Blackfoot river. It is on the ranch he asked Courtney to marry him.

The couple married on November 11, 2022.

Sean Harmon Career

Sean Harmon on the set of NCIS LA with his colleagues

At 15, Sean Harmon worked in Harts of the West. Additionally, he bagged his first gig on a TV series called NCIS, where he played a recurring character as a young version of Special Agent Leroy Jethro Gibbs (played by his father, Mark Harmon).

Sean Harmon appeared in ‘Life Before His Eyes,’ ‘Engaged: Part I,’ ‘Engaged: Part II,’ ‘Mother’s Day,’ ‘Deliverance,’ and ‘Heartland’ NCIS episodes.

He appeared in the CSI: NY series as Ethan Grohl. Like NCIS, the series is based on a police investigation and examines how a police team tries to solve a crime using forensic sciences in New York.

Additionally, Sean Harmon likes working as a double and stunt coordinator, writing, producing, and directing films.

Sean Harmon on his bike doing stunts

Sean worked as a stunt player in an adult comedy movie called ‘American Reunion’ in 2012. Jon Hurwitz and Hayden Schlossberg directed the film.

He wrote, directed, produced, and coordinated stunts for a short film called Catholic Schoolgirl Chainsaw Showdown in 2012. Aside from that, he has worked as a stunt performer in several movies.

In 2014, he was a stunt performer for Dumb and Dumber, which starred actors like Jim Carrey and Jeff Daniels. Some of the other projects where he has worked as a stunt performer include Takanakuy (2015), The Sweet Taste of Redemption (2015), Into the Equinox (2016), The Labyrinth (2017), and Golden Revenge (2018).

Harmon is actively involved behind the scenes, working on movie stunts.

In addition to his previous work, Sean will appear in the television movie Thicker Than Thieves in post-production. The film will be about a young group of people chasing the same goal


2008-2012TV seriesNCISYoung Leroy Jethro Gibbs
2011ShortAgent Mx-z3RoStunt coordinator/ Stunt performer
2012TV series CSI: NYAs Ethan Grohl
2012TV series RebelStunt coordinator
2012MovieAmerican ReunionStunt Player
2012MovieCatholic Schoolgirl Chainsaw ShowdownStunt coordinator/ Writer/ Producer/Director
2013ShortMicroAs Tyler/ Stunt coordinator
2013TV seriesLaurenAs Romero
2013ShortLady of RAGEStunt coordinator
2014ShortThe CompatibleAs Jamie Jones
2014MovieDumb and Dumber ToStunt performer
2015TV series NCIS: Los AngelesAs Charlie Connor
2015TV series The Ultimate EvilAs Jake
2015TV seriesMajor CrimesAs Felix Koster
2015MovieThe FitsAs Karisma’s dad
2015ShortTakanakuyAs Dennis Brown/ Stunt coordinator
2015TV SeriesHaven: OriginsAs a Frank / Stunt player
2015ShortThe Sweet Taste of RedemptionStunt coordinator
2016ShortTen Thousand MilesAs SGT Terry Scott
2016MovieInto the EquinoxStunt Rigger
2017MovieThe LabyrinthStunt coordinator
2018ShortThe Dead ManStunt Double for Dominic Bogart
2018TV SeriesGolden RevengeStunt coordinator
2019ShortAlinaAs HenrykFirstGlance Film Festival– Best Ensemble Cast- Short Film (Nominee)

Independent Short Awards– Best Acting Ensemble
2019MovieHold onAs Mac
2020MovieThe Downside of BlissStunt player
2020MovieThicker Than ThievesAs Jones

Net worth

Sean Harmon’s net worth is estimated to be around USD 10 million. He has earned his wealth from movies and tv shows. Likewise, he worked as a stunt performer and coordinator in several films.

On the other hand, his father, Mark Harmon’s net worth stands at USD 90 million, earning about USD 525,000 per episode.

Likewise, Sean’s mother, Pamela Dawber, also has a net worth of USD 10 million, which she gained from working as a model and actress before she retired to spend time and focus on her family.

Social media

Sean has an account on Instagram, but he doesn’t seem to be active much.


Is Sean Harmon Married?

Many fans are curious about his love life and want to know if he is married. So here’s a piece of good and bad news. Sean is not married yet, but he is in a relationship with a fitness guru and storyteller, Courtney Prather. He proposed to her on his ranch on July 9, 2021.

Is Sean Harmon related to Mark Harmon?

Sean Harmon is the eldest son of Mark Harmon. In NCIS, Sean Harmon played the younger version of his dad’s character, Leroy Jethro Gibbs.

Does Mark Harmon have an actor son?

Mark Harmon has two sons, Sean Harmon and Ty Christian Harmon. Sean Harmon is the eldest son who has pursued acting as his career, just like his father. He is best known for his character as Gibb’s younger version of NCIS.
Mark’s younger son, Ty Christian, is a screenwriter.

Who is Sean Harmon’s mother?

Sean Harmon’s mother is Pamela Dawber. Like his father, Mark, his mother is also an American actress renowned for Mindy McConnell’s character in a television sitcom named “Mork & Mindy.”

What is Sean Harmon doing now?

Sean is immensely talented and successful. He has bagged several movies and TV series gigs due to his work ethic and talent. Likewise, Sean also does exceptional work as a stunt performer and coordinator.
We can say for sure that he is a hardworking professional person.
He is devotedly giving time to his career and working on new projects.

What shows has Sean Harmon played in?

Sean has played in NCIS, NCIS: Los Angeles, The Ultimate Evil, and Haven: Origins

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