Mark Semos Biography: Awards, Books, Siblings, Religion, Parents, Age, Net Worth, Height, Movies, Wife, Pictures
Mark Harrington Semos, professionally known as Mark Semos, is an American television writer, producer, actor, director, stunt performer, and former U.S. Navy SEAL.
He is best known for his work on the military drama series SEAL Team, where his operational background has contributed to the show’s writing, production, acting, and technical authenticity.
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| Wiki Facts & About Data | |
| Real Name: | Mark Harrington Semos |
| Stage Name: | Mark Semos |
| Born: | 6 October 1978 (age 47 years old) |
| Place of Birth: | Alexandria, Virginia, United States |
| Nationality: | American |
| Ethnicity: | White American |
| Height: | 1.80m |
| Religion: | Christianity |
| Parents: | Mr. and Mrs. Semos |
| Occupation: | Television Writer, Producer, Actor, Director, Stunt Performer, Technical Adviser, Former U.S. Navy SEAL |
| Net Worth: | $1 million |
Early Life and Education
Mark Semos was born on October 6, 1978, in Alexandria, Virginia. His family moved to the Palos Verdes area of California when he was four, and he later attended Palos Verdes Peninsula High School, where he captained the water polo and swimming teams.
His parents, Mr. and Mrs. Semos, supported his development during these formative years, and no information about siblings has been made public.
After high school, Semos received a Congressional nomination to the United States Naval Academy and entered with the Class of 2001, intending to become a Navy SEAL officer.
He left the academy in 2001 and subsequently pursued enlisted SEAL service, completing BUD/S training and serving in the SEAL Teams from 2001 to 2009.
He also graduated as honorman of his Sniper School class. He is White American, and Christianity is his religious tradition.
Career
Mark Semos entered the entertainment industry after leaving the Navy in 2009. He worked at a shooting school and undertook private-security contracts before former students who were stunt coordinators introduced him to stunt work.
His military and weapons expertise soon led to regular film and television assignments, with Lone Survivor becoming an important breakthrough after he choreographed its firefights and gained extensive filmmaking experience on the production.
Mark Semos expanded from stunt work and technical advising into acting, writing, producing, and directing. He became closely associated with SEAL Team, contributing as a producer, story editor, writer, actor, and director; his writing credits include 15 episodes, while he appeared as John “TJ” Monero and other military characters.
He also worked on Captain Phillips, Jurassic World, Patriots Day, The Gray Man, Criminal Minds, and Marshals, establishing a distinctive career that combines real-world special-operations experience with screen storytelling.
Awards and Nominations
- Broady Award — Best Episode, Drama — Fog of War — Nomination
Social Media
- Instagram Handle: @marksemos
Personal Life
Mark Semos is 47 years old and stands 1.80m tall. He maintains a quiet personal life, and no reliably established information identifies a spouse, marriage, long-term romantic partner, or children.
His public career has instead centered on military service, filmmaking, writing, producing, stunt performance, and technical advising, with his former Navy SEAL experience remaining an important part of his professional identity.
Net Worth
Mark Semos has an estimated net worth of $1 million. He has built his income through television writing and producing, acting, stunt performance, directing, and technical and military advising.
His extensive work on SEAL Team, alongside film credits including Jurassic World, Captain Phillips, Lone Survivor, and The Gray Man, forms a significant part of his entertainment career.
Filmography
- One Man Army — 2011
- Iron Man 3 — 2013
- Captain Phillips — 2013
- Lone Survivor — 2013
- Captain America: The Winter Soldier — 2014
- Jurassic World — 2015
- Banshee — 2015
- Patriots Day — 2016
- The Warfighters — 2016
- Live to Tell — 2016
- SEAL Team — 2017–2024
- The Gray Man — 2022
- The Lincoln Lawyer — 2023
- Marshals — 2026
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