Sean Brosnan is widely known as the son of famous actor Pierce Brosnan and the late actress Cassandra Harris, but his life story extends far beyond his Hollywood connections. Born on September 13, 1983, in Los Angeles, California, he has worked as an actor, filmmaker, producer, and mental-health professional. Over the years, his life has included success in entertainment, serious personal loss, a major accident, recovery from addiction, marriage, fatherhood, and a new career focused on helping others.
Quick Bio of Sean Brosnan
| Quick Bio | Details |
|---|---|
| Full Name | Sean Brosnan |
| Date of Birth | September 13, 1983 |
| Age | 43 years old as of September 2026 |
| Birthplace | Los Angeles, California, USA |
| Nationality | American |
| Father | Pierce Brosnan |
| Mother | Cassandra Harris |
| Profession | Actor, filmmaker, producer, mental-health professional |
| Wife | Sanja Banic |
| Marriage Date | August 23, 2014 |
| Known Children | Marley May Brosnan, Jaxxon Elijah Brosnan |
| Notable Work | Generation Kill, My Father Die |
| Education | Central School of Speech and Drama; Antioch University |
Sean Brosnan Early Life and Family
Sean Brosnan grew up in a family closely connected with the entertainment industry. His father, Pierce Brosnan, became one of the world’s most recognizable actors after playing James Bond, while his mother, Cassandra Harris, was also an actress. Cassandra had two older children, Charlotte and Christopher, from an earlier marriage, and Pierce later adopted both of them.
Sean experienced a major loss when he was still very young. His mother died from ovarian cancer in December 1991, when he was only eight years old. This loss had a strong effect on his childhood and later became part of the emotional struggles he discussed publicly. He also has two younger half-brothers, Dylan Brosnan and Paris Brosnan, from Pierce’s marriage to Keely Shaye Smith.

Sean Brosnan Education and Early Interests
During his teenage years, Sean Brosnan attended boarding school in England. He later developed a strong interest in acting and studied at the Central School of Speech and Drama in London. This education helped prepare him for a professional career in film and television.
Many years later, his interests changed significantly. He returned to education and studied psychology, eventually earning a master’s degree in Clinical Psychology from Antioch University in Los Angeles. This change showed a very different side of his personality, as he began moving away from entertainment and toward work involving mental health and human behavior.
Sean Brosnan Accident
One of the most difficult moments in Sean Brosnan’s life happened in April 2000. He was involved in a serious vehicle accident in Malibu, California, when a vehicle carrying him and several other young people went over an embankment. Reports stated that the vehicle fell around 150 to 200 feet.
The accident caused serious injuries. Sean suffered a fractured pelvis, a ruptured bladder, and injuries involving his spine or vertebrae. He was transported by helicopter to UCLA Medical Center, where he received medical treatment. His recovery was long and difficult, and his condition was serious enough that Pierce Brosnan and Keely Shaye Smith delayed their planned wedding while he continued to recover.
Sean Brosnan Actor Career
Before changing his professional direction, Sean Brosnan developed a career as an actor. He appeared in several movies and television productions and worked to create an identity of his own in the entertainment industry. One of his most recognized performances came in the HBO miniseries Generation Kill, where he played Corporal Daniel, Redman.
His acting credits also include projects such as Robinson Crusoe, Have Dreams, Will Travel, Surveillance 24/7, U.F.O., Don Peyote, Acts of Violence, and No Easy Days. He also gained experience behind the scenes and worked as a stand-in for his father during the production of Laws of Attraction.
Sean Brosnan Movies and TV Shows
Sean Brosnan movies and TV shows cover different styles and genres. His work in Generation Kill brought him attention on television, while his movie appearances allowed him to develop experience in drama, action, and independent filmmaking. Unlike many celebrity children who stay connected mainly to their family name, he received acting training and worked on several independent projects.
His career also began to move beyond acting. He became interested in writing, directing, and producing, which gave him greater creative control over his work. This eventually led to one of the most important projects of his filmmaking career.
Sean Brosnan and My Father Die
Sean Brosnan became especially involved in filmmaking through My Father Die, a feature film released in 2016. He wrote and directed the movie and also worked as one of its producers. The film premiered in the Midnighters section of the SXSW Film Festival, giving his work attention within the independent film world.
The project also had a family connection because Pierce Brosnan was one of the producers. Sean’s wife, Sanja Banic, also worked as a producer on the film. The story was partly inspired by J. M. Synge’s The Playboy of the Western World, but Sean developed it into a darker American revenge story with its own style and setting.

Sean Brosnan Wife and Wedding
Sean Brosnan is married to Sanja Banic, who has worked as an actress, writer, and producer. The couple married on August 23, 2014, at the Paramount Country Club in New York. Their wedding was attended by family members and friends, including Pierce Brosnan.
Their relationship has included both personal and professional connections. Sanja became involved in Sean’s creative work and helped produce My Father Die. Their partnership therefore developed not only through family life but also through shared work in the entertainment industry.
Sean Brosnan Kids and Children
Sean Brosnan and Sanja Banic are parents. Public reporting has confirmed at least two children by name, Marley May Brosnan and Jaxxon Elijah Brosnan. Jaxxon was born on November 12, 2022, and Pierce Brosnan publicly celebrated the arrival of his grandson.
At the time of Jaxxon’s birth, Marley was already known publicly as their older daughter. Some entertainment databases give different numbers when discussing Sean Brosnan’s children, but not every detail has been clearly confirmed by reliable sources. For that reason, it is better to use only information that has strong public support.
Sean Brosnan Addiction and Recovery
Sean Brosnan has spoken openly about periods of addiction and emotional difficulty. His struggles were connected with several painful experiences, including the loss of his mother, his serious Malibu accident, and other family tragedies. He has openly shared how substance misuse affected his life and how he gradually worked toward lasting recovery.
Another painful event came in 2013, when his sister Charlotte Brosnan died from ovarian cancer. She suffered from the same disease that had taken their mother many years earlier. Sean later worked toward sobriety and began rebuilding his life with a stronger focus on health, family, and education.
Sean Brosnan Mental Health Career
After changing direction professionally, Sean Brosnan entered the field of psychology and counseling. He completed advanced study in clinical psychology and began working with people dealing with addiction, trauma, grief, anxiety, depression, and relationship problems. His own life experiences gave him a personal understanding of many of the challenges faced by people seeking help.
Public professional profiles have also connected him with Boise, Idaho, where he has worked in the mental-health field. His career has included addiction treatment, counseling, and therapeutic work. This part of his life is very different from his earlier years in acting, showing how strongly his priorities changed over time.
Sean Brosnan Age, Height, and Net Worth
Sean Brosnan was born on September 13, 1983, making him 43 years old in September 2026. Public entertainment databases generally list his height at around 6 feet, or about 1.83 meters, although some profiles provide slightly different measurements.
His net worth is not publicly confirmed by reliable financial records. Several celebrity websites publish estimated figures, but these numbers should not be treated as verified facts. His career has included acting, filmmaking, production, counseling, and addiction treatment, so his professional income has likely come from several different areas.

Sean Brosnan and Christopher Brosnan
People sometimes search for Christopher Brosnan and Sean Brosnan because of the family’s complicated structure. Christopher Brosnan is Sean’s older brother through their mother, Cassandra Harris. Christopher was born during Cassandra’s earlier marriage, and Pierce Brosnan later adopted him.
He is the biological son of Pierce and Cassandra. This means Christopher and Sean share the same mother, while Pierce became Christopher’s adoptive father. Their older sister, Charlotte, was also adopted by Pierce after the death of her biological father.
Sean Brosnan Coach and Newbury Park Confusion
A common source of confusion online is another person named Sean Brosnan. Searches such as Sean Brosnan coach, Sean Brosnan running, Sean Brosnan cross country, and Sean Brosnan Newbury Park usually refer to a completely different man. he became known for coaching distance runners and developing a successful program at Newbury Park High School.
The running coach later worked with UCLA and joined USC in 2026. He is not Pierce Brosnan’s son and has no connection with the acting or psychology career described in this article. Keeping both people separate is important when researching information online.
Beyond Fast Sean Brosnan
The book Beyond Fast is another reason people sometimes confuse the two men. The book focuses on distance running and the success of the Newbury Park cross-country program. It was written by the running coach Sean Brosnan with other contributors.
Pierce Brosnan’s son did not write this running book. Anyone searching for Sean Brosnan’s book should understand that Beyond Fast belongs to the coach, not the actor, filmmaker, and mental-health professional discussed here.
Frequently Asked Questions
Who is Sean Brosnan?
He is an American actor, filmmaker, producer, and mental-health professional. He is the son of Pierce Brosnan and Cassandra Harris.
How old is Sean Brosnan?
Sean Brosnan was born on September 13, 1983. He is 43 years old as of September 2026.
Who is Sean Brosnan’s wife?
Sean Brosnan is married to Sanja Banic, an actress, writer, and producer. They married on August 23, 2014.
Does Sean Brosnan have children?
Yes. Sean Brosnan and Sanja Banic are parents. Their publicly known children include Marley May Brosnan and Jaxxon Elijah Brosnan.
Is Sean Brosnan the Newbury Park running coach?
No. Pierce Brosnan’s son is a different person from the Sean Brosnan who coached distance runners at Newbury Park High School.
Conclusion
He has lived a life shaped by both opportunity and serious challenges. He grew up as the son of Pierce Brosnan and Cassandra Harris, entered acting, worked in television and film, became a filmmaker, survived a major accident, faced addiction, experienced painful family losses, and later moved into psychology and counseling.
His career includes important entertainment projects such as Generation Kill and My Father Die, while his later work has focused more on mental health, addiction, grief, and recovery. His story shows a major personal and professional transformation over time. It is also important to remember that the famous Newbury Park running coach with the same name is a different person and should not be confused with Pierce Brosnan’s son.
For More Trending Stories, Explore GossipTime.
