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The Daily Insight

Million Little Things Actor Tristan Byon Parents In Real Life

Author

Lily Fisher

Published Feb 26, 2026

Tristan Byon parents are Dr. Rosa Byon and her husband are the proud folks of three children. The couple resides in California.

Byon is known for his role as Theo Saville in the television series A Million Little Things. The child actor is also known for appearing in the hit song Baby Shark.

He has appeared in other well-known television shows such as Two and a Half Men, Grey’s Anatomy, Criminal Minds, Grandfathered, and Teachers. 

The young actor’s father is a private person and hasn’t disclosed his name and profession to the public. His mom and dad are not active on any social media platforms but they have been featured in some posts shared by their children.

Tristan grew up playing with his sister and brother in California. His sister revealed that their family doesn’t go on vacation often as everyone in the family is busy. Despite that, the five of them have a close-knit relationship. 

Tristan Byon Mother Is A Dentist

Among Tristan Byon parents, his mother Dr. Rosa T. Byon makes frequent public appearances. Rosa works as a dentist at Whittier Dental Center. 

Dr. Rosa specializes in all aspects of cosmetic dentistry such as white fillings, porcelain veneers, and full porcelain crowns. 

In 2001, she received her dentistry degree from the USC School of Dentistry. Rosa was included on the Dean’s list and received Golden Hand Award for her excellence in Aesthetic Dentistry.

She got her bachelor’s degree from the University of San Diego in biochemistry in 1995. 

Tristan Has Two Older Siblings

Tristan has two older siblings a sister Kaylee Byon and a brother Brandon Byon. 

According to Kaylee’s Instagram, the siblings have a close relationship with each other. When they get a chance from their busy schedule they try to spend some quality time with each other. 

The trio is a huge fan of basketball and never misses to share their love for the late Kobe Bryant.

Sister Kaylee Byon Is A Basketball Player 

Kaylee plays college basketball at Utah Valley University. Previously, she was part of the varsity basketball team at Rosary Academy and during her freshman year, she and her team won the State Championship. 

According to her social media account, she has signed with Beast Mode Marketing.

During an interview with the Rosary Academy blog, she mentioned that she is a creative and artistic person. In her free time, she cooks, bakes plays guitar, learns new songs, and learns calligraphy. 

Further in her life, Kaylee plans to go to dental school and specialize in orthodontics. 

Brother Brandon Byon Is A University Student

Brandon is a student at Cal State Fullerton and he is majoring in biology. 

Brandon is 20 years old and the middle child of the family. He is comparatively more private about his life than his two siblings. He has also enabled the privacy mode on his Instagram handle @byonb8.

David Giuntoli And Grace Park Are Tristan Reel Life Parents

David Giuntoli and Grace Park play the role of Eddie Saville and Katherine Kim respectively in the show A Million Little Things.

The family dynamic in the family is broken as Eddie and Katherine had decided to get a divorce in season three of the show. Despite their differences, the pair have immense love for their son Theo. 

Where Have We Seen David Giuntoli Before?

Giuntoli is known for his role as detective Nick Burkhardt in the television show Grimm. He has made appearances in several television series such as Grey’s Anatomy, Private Practice, Love Bites, and The Unit. 

He has also showcased his acting skills in films such as Turn the Beat Around, Buddymoon, Weather Girl, and 13 Hours: The Secret Soldiers of Benghazi. 

Where Have We Seen Grace Park Before?

Park has played the main role in several television series including Battlestar Galactica, The Cleaner, The Border, Hawaii Five-0, and Edgemont. She is also known for recurring roles as Fran Yoshida in Jake 2.0 and Mikiko in The Immortals.

Grace has also acted in films such as Freaks, Adventures in Public School and West 32nd.