Mason King is the adopted son of filmmaker and digital illusionist Zach King and Zach’s wife, Rachel Holm King. Rachel’s first-person account confirms that the couple finalized Mason’s adoption on April 18, 2019, following their involvement in foster care. Unlike his internationally famous father, Mason is not an independent celebrity, actor, influencer, or public professional. He is a child whose name appears online mainly because his parents have occasionally discussed their family and adoption experience.
That distinction matters. Reliable information about Mason concerns his relationship to the King family and the publicly documented adoption timeline. His full birth details, education, personal interests, health information, and plans have not been responsibly disclosed and should not be reconstructed from speculation.
Bio Summary
| Person | Full Name | Date of Birth | Profession / Status | Known For | Family Information |
|---|---|---|---|---|---|
| Zach King | Zachary Michael King | February 4, 1990 | Filmmaker, digital creator and author | “Magic Vines” and digital illusion videos | Husband of Rachel Holm King and father of Mason and Liam |
| Rachel Holm King | Rachel Holm King | September 16, 1990 | Content creator and former social-work professional | Foster-care advocacy and The Amazing Race 28 | Married Zach King in December 2014 |
| Mason King | Mason King | Born in 2017 | Private young person | Occasional appearances in family videos | Adopted son of Zach and Rachel; adoption finalized on April 18, 2019 |
| Liam King | Liam King | July 4, 2018 | Private young person | Member of the King family | Biological son of Zach and Rachel |
Who Is Mason King?
The clearest answer is also the most accurate: Mason is a member of the immediate King family, not a public figure with a separate entertainment career.
Online searches often place his name beside Zach King and Rachel Holm because the couple has shared selected parts of their family story. That public association does not make every aspect of the child’s life open for reporting. No authoritative source establishes a professional biography, verified personal social-media presence, earnings history, or independent career for him.
Rachel has written openly about becoming an adoptive parent, but her account focuses on the family’s legal and emotional milestone rather than revealing unnecessary details about Mason’s earlier circumstances. Her adoption article identifies April 18, 2019, as the day the court approved the adoption.
This provides a crucial correction to a common wording problem. April 18 was the date the adoption was finalized; it should not automatically be described as the day he first entered Zach and Rachel’s home. Foster placement and legal adoption are separate stages, and the publicly available primary account does not justify merging them into one event.
Mason King’s Adoption and the Family’s Foster-Care Story
Zach and Rachel’s connection with foster care began before the adoption was completed. Rachel has described herself as a mother through foster care, adoption, and biological parenthood, while explaining that the family felt called to become involved in the foster system.
Their experience did not begin as a celebrity publicity campaign. In Rachel’s own writing, foster care appears as a long-term family commitment. She has also said that she and Zach wanted to encourage others to learn more about the system by sharing carefully selected parts of their experience.
Relatives and close family friends attended the legal proceeding in April 2019. Rachel recalled that the hearing was brief and that she and Zach formally affirmed their decision to adopt and raise their son. Her account is the strongest available source because Mason’s adoptive mother wrote it and describes the event directly.
Reporting should stop where the verified account stops. Details concerning Mason’s biological relatives, earlier placement history, and private legal records have not been released for general public examination. Those omissions should be treated as legitimate privacy boundaries, not gaps to fill with guesses.
How Mason Fits Into Zach King and Rachel Holm’s Family
Zach King is an American filmmaker and online creator known for short visual-effects videos that make ordinary actions appear impossible. His official studio biography says he began making films at seven and later built an audience through YouTube, Vine, and other platforms. Biola University, where he graduated in 2012 with a degree in Cinema and Media Arts, describes his work as a combination of filmmaking, optical illusion, and creative editing.
Rachel Holm King has appeared beside Zach both personally and professionally. CBS introduced the couple as newlyweds when they joined the cast of The Amazing Race 28. They competed as a married team and were eliminated during the April 22, 2016, episode, placing them sixth in the season’s finishing order.
Entertainment databases list their wedding date as December 28, 2014. Although that date is widely published, the more authoritative CBS material simply confirms that they were spouses and newlyweds during the 2016 competition.
The couple also has a biological son, Liam. Rachel’s first-person account of Liam’s first birthday states that he was born on July 4, 2018.
This means the brothers joined the family through different paths: Mason through foster care and adoption, and Liam through birth. Rachel has consistently described both experiences as equally central to her identity as a mother.
Why Public Interest in Mason King Has Grown
Interest in the family is largely an extension of Zach’s immense online audience. By 2024, Biola University reported that the filmmaker had a combined social reach of more than 130 million followers. His videos are recognized for using editing and optical effects to create apparent magic rather than presenting conventional stage illusions.
Family appearances can therefore reach far beyond a normal private photo album. When Mason appears in a video or photograph, viewers may search his name to understand his connection to the creator. That curiosity explains the search volume, but it does not transform him into a celebrity with an obligation to disclose personal information.
This is where many low-quality biographies become unreliable. They assign exact ages without sourcing birth records, calculate supposed fortunes, invent hobbies, or describe a child’s personality from a handful of edited posts. None of those methods meet serious editorial standards.
The responsible profile is narrower but more useful. It confirms who his parents are, explains the adoption timeline, distinguishes foster placement from adoption finalization, and identifies which details remain private.
Does Mason King Appear in Zach King’s Content?
Mason has appeared in publicly shared family material and screen credits connected with his father. IMDb, for example, lists Mason, Liam, and Zach in the 2019 short production Magic Tricks Shots for Dads. IMDb is an industry database rather than a family record, so this credit should be treated as evidence of a documented appearance, not proof of an acting career.
A young person appearing in a parent’s video does not automatically become a professional performer. There is no verified evidence that Mason has launched an independent channel, signed a public entertainment contract, or chosen a long-term career in filmmaking.
That distinction should remain clear in headlines, biographies, image captions, and metadata. Describing him simply as an “actor” or “internet celebrity” would overstate the evidence.
The Importance of Privacy in Reporting on Celebrity Children
Celebrity-family reporting carries an unusual responsibility. Readers may recognize the parents, yet the children have not necessarily made an informed decision to live publicly.
For Mason, responsible coverage should avoid an exact home location, school name, daily routine, personal contacts, legal documents, medical information, or speculation about his biological family. The lack of those details is not an editorial weakness. It reflects the line between legitimate public-interest reporting and unnecessary intrusion.
The strongest available sources are Rachel’s own adoption and foster-care writings, CBS’s material about the parents’ television appearance, Zach’s official studio biography, and Biola University’s documentation of his filmmaking career. These establish the family relationship without turning a child’s life into entertainment.
Key Takeaways: The Bottom Line
Mason King is best understood as the adopted son of Zach King and Rachel Holm King. His adoption was finalized on April 18, 2019, after Zach and Rachel had become involved in foster care. He is a brother to Liam, whose birth Rachel documented in 2018.
Beyond those established points, the public record is intentionally limited. No trustworthy evidence supports claims about Mason’s net worth, independent profession, private education, or personal ambitions. A high-quality biography should preserve that boundary while clearly explaining the verified family story.
FAQs.
Who is Mason King?
He is the adopted son of digital filmmaker Zach King and Rachel Holm King.
When was Mason King adopted?
Zach and Rachel finalized his adoption on April 18, 2019, according to Rachel’s first-person account.
Is Mason King Zach King’s biological son?
No. Public family accounts identify him as Zach and Rachel’s adopted son.
Who is Mason King’s brother?
His publicly documented brother is Liam King, the biological son of Zach and Rachel.
When was Liam King born?
Rachel’s account of his first birthday indicates that Liam was born on July 4, 2018.
Does Mason King have a career?
No independent profession has been publicly verified. He has appeared in family-related content but should not automatically be classified as a professional actor or influencer.
What is Mason King’s net worth?
There is no credible independent estimate. Assigning a net worth to a private child would be misleading.
Were Zach King and Rachel Holm on The Amazing Race?
Yes. CBS cast them as a married team on Season 28, where they finished in sixth place.
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