Xavier Alexander Wahlberg: Who Is Donnie Wahlberg’s Eldest Son?

October 23, 2026
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Xavier Alexander Wahlberg — Donnie Wahlberg's eldest son and frontman of death metal band Upon Stone

Xavier Alexander Wahlberg was born on March 4, 1993, to a father who was, at that moment, one of the most famous young men on the planet. Donnie Wahlberg — founding member of New Kids on the Block, later Danny Reagan on Blue Bloods — was just 23 when his first son arrived. Three decades on, the younger Wahlberg has built a life that is almost a mirror image of his father’s: he is a musician too, but in underground death metal, a world of club shows and cult labels where he performs under lights he earned himself — and he guards his privacy so fiercely that he has no public social media presence at all.

This is the story of Donnie Wahlberg’s eldest son: the recording-engineer mother who raised him away from the cameras, the boy-band childhood that unfolded between Boston and California, the divorce that reshaped the family, his musician brother Elijah, his stepmother Jenny McCarthy, and the San Fernando Valley metal band, Upon Stone, that turned a teenage hobby into a record deal with one of heavy music’s biggest labels. It is the world xavier alexander wahlberg was born into — and the one he quietly rewrote.

Quick Facts

Full nameXavier Alexander Wahlberg
BornMarch 4, 1993 (turned 33 in 2026)
FatherDonnie Wahlberg — New Kids on the Block founding member; Danny Reagan on Blue Bloods and Boston Blue
MotherKimberly “Kim” Fey — recording engineer; Donnie’s first wife (married 1999, divorced 2010)
BrotherElijah Hendrix Wahlberg (born August 20, 2001) — musician, fronts Pink Laces
StepmotherJenny McCarthy (married Donnie in 2014); stepbrother Evan Joseph Asher
Known forVocalist and bassist of melodic death metal band Upon Stone (Century Media Records)
BasedLos Angeles area / San Fernando Valley, California (per band coverage)
Public profileDeliberately private — no public social media, rare public appearances

Who Is Xavier Alexander Wahlberg?

Xavier Alexander Wahlberg is the eldest of Donnie Wahlberg’s two sons, and a nephew of actors Mark and Robert Wahlberg and chef Paul Wahlberg. Yet anyone expecting a typical celebrity offspring will be surprised: there are no red-carpet campaigns, no reality-show career and no influencer brand. The confirmed facts about his adult life fit on an index card — and nearly all of them are about music.

What the public has seen of him can be counted quickly. As a nine-year-old in 2002 he was photographed on the red carpet at the Scooby-Doo premiere with his father, according to published profiles. As a young adult he appeared in a single episode of Donnie Loves Jenny, the reality series that followed his father and stepmother’s first year of marriage. And that, on screen, is essentially all. For xavier alexander wahlberg, staying out of the spotlight was never an accident.

Everything else known about him comes from three sources: his father’s interviews, where Donnie speaks about his sons with obvious pride and equally obvious restraint; his mother’s almost total silence; and the official biography of his band, published by Century Media Records — which treats him, pointedly, as a working musician rather than a celebrity’s son. Together, they sketch xavier alexander wahlberg exactly as the family prefers: briefly, factually and through the music.

His Father: Donnie Wahlberg, From Boy Band to Blue Bloods

Xavier Alexander Wahlberg grew up the son of New Kids on the Block star Donnie Wahlberg

Donnie Wahlberg was born on August 17, 1969, in Dorchester, Boston, the eighth of nine children in a working-class Irish-American family. In 1984 he became a founding member of New Kids on the Block, and by the end of the decade the group were among the biggest pop acts in the world — a level of fame, complete with screaming fans and merchandising mania, that few teenagers in history have experienced. It is the fame xavier alexander wahlberg was born into.

When the boy-band wave broke, Donnie reinvented himself as an actor: a memorable turn in The Sixth Sense, the Saw horror franchise, the police drama Boomtown, and then, in 2010, the role that defined his second career — Detective Danny Reagan on Blue Bloods, which he played for 14 seasons. Since 2025 he has continued the character in the spin-off Boston Blue. He is also a producer and a partner in the Wahlburgers restaurant chain founded by his brother Paul. That second career formed the backdrop to the childhood of xavier alexander wahlberg.

Fatherhood arrived in the middle of the first fame wave, and Donnie has never hidden what it cost and gave him. “It sounds cliché, but I stopped living for me and started living for him,” he told The Mercury News in 2013. “It stopped being about my legacy and became about my ability to provide for him. I was 23. I was terrified.” Friends and interviewers consistently describe that shift — from pop idol to provider — as the making of him.

His Mother: Kim Fey, the Engineer Behind the Scenes

If his father worked in front of the microphones, his mother worked behind them. Kimberly Fey — known as Kim — was a recording engineer, part of the studio world that produced the era’s hits. Profiles of the couple report that she and Donnie met in the early 1990s through studio work, while he was still in his New Kids on the Block years, and that their relationship began years before they married. Hers is the quieter half of the xavier alexander wahlberg story.

Their first son was born in 1993, and the couple eventually married on August 20, 1999. A second son, Elijah Hendrix, followed in 2001. The marriage lasted through Donnie’s acting reinvention, but the couple separated in January 2008 and filed for divorce that August, citing irreconcilable differences, as People reported at the time. Fey sought custody of the boys, then 15 and 7, along with spousal support; Donnie’s representative said the two “remain friends.” The divorce was finalised in 2010.

Since then, Fey has lived almost entirely out of public view — no memoir, no interview circuit, no social-media profile trading on the Wahlberg name. That silence is itself a fact about this family: the pop star and the engineer agreed on at least one thing, which was that their sons’ childhoods were not content. The arrangement defined the upbringing of xavier alexander wahlberg.

Growing Up Wahlberg: Fame, Divorce and a Guarded Childhood

Xavier Alexander Wahlberg grew up inside Boston's famous Wahlberg family

Xavier Alexander Wahlberg grew up between two worlds: Boston, where the Wahlberg name is part of the civic furniture, and California, where much of his parents’ work — and later his own music — was based. The teenage bandmates he would one day form Upon Stone with were fellow San Fernando Valley kids, a clue to where a good part of his youth was spent: not on film sets, but in Valley bedrooms full of guitars.

He was fifteen when his parents’ divorce filing made headlines — an age at which most teenagers are negotiating school and first jobs, not reading about their family in People. By the accounts available, the split was handled as privately as a celebrity divorce can be, and the boys’ schooling and daily lives stayed out of the press. Donnie remarried in 2014; there are no public reports of Fey remarrying. Through all of it, xavier alexander wahlberg remained a schoolboy first and a headline second.

Donnie has explained the family’s approach in the few interviews where the subject comes up. He has described his eldest son in interviews — including on the Rachael Ray Show — as “very out of the spotlight,” a preference the family respects rather than promotes. In an era when fame is often treated as an inheritance to be spent, the Wahlbergs treated it as something their eldest could simply decline. It is the bargain xavier alexander wahlberg has kept ever since.

Two Brothers, Two Kinds of Music: Xavier and Elijah

The brothers are eight years apart and, musically, almost opposites. Donnie once summed them up in a line that fans still quote: he was raising “two amazing kids — one a straight A’s NKOTB fanatic, and the other a hardcore band member.” The fanatic was Elijah. The hardcore kid was Xavier Alexander Wahlberg.

Elijah Hendrix Wahlberg, born on August 20, 2001, took the pop route his father pioneered. He fronts his own project, Pink Laces, which has released an EP, singles and an album, appeared on the debut cover of Jado magazine, and maintains the kind of public Instagram presence his brother avoids. Like Xavier, he made a single-episode appearance on Donnie Loves Jenny — and otherwise built his profile through the music itself.

The brothers also share a stepbrother: Evan Joseph Asher, Jenny McCarthy’s son, born in 2002. And the family remains close in ways that surface in Donnie’s interviews — in December 2025 he told People that Elijah had repeatedly asked him to move back to California to be near his sons, adding that his two boys are “probably the only thing that could ever get me back to California.” It is the wider family xavier alexander wahlberg still belongs to — on his own terms.

Upon Stone: The Metal Band He Built Himself

Xavier Alexander Wahlberg fronts San Fernando Valley melodic death metal band Upon Stone on vocals and bass

For Xavier Alexander Wahlberg, there was never much doubt that he would make music — only what kind. The answer turned out to be about as far from “Step by Step” as music gets: melodic death metal, in the early-1990s Gothenburg style of At the Gates, In Flames and Dissection. He is the vocalist and bassist of Upon Stone, a quartet from California’s San Fernando Valley signed to Century Media Records, one of the biggest labels in heavy music.

The band’s roots go back to his teens. Century Media’s official biography records that Wahlberg, drummer Wyatt Bentley and guitarist Ronny Marks “began playing together in various Valley bedroom-bred outfits” as teenagers, obsessed with Children of Bodom, In Flames and Dissection — “the gold standard,” as Bentley puts it. Guitarist Gage Goss completed the line-up, and the band truly came together during the pandemic shutdown.

“The minute we first picked up guitars and started playing together, we knew there was something magic about this,” Xavier said in the label’s biography. “It was obvious this was supposed to happen.” A first EP, Where Wild Sorrows Grow, arrived in late 2021 on the Creator-Destructor label; the band made its live debut in January 2022 and toured relentlessly through the hardcore and metal underground. For xavier alexander wahlberg, the grind was always the point.

The work paid off in the underground’s own currency: a deal with Century Media and a debut album, Dead Mother Moon, released in early 2024 and produced by Taylor Young, followed by the End Time Lightning EP in 2025. Before Upon Stone, underground metal databases also credit Wahlberg with time in Los Angeles hardcore bands, including a stint listed with Xibalba — the scene his father was describing when he called his son a hardcore band member years earlier.

What the surname could not do for him is worth noting: death metal audiences are famously indifferent to famous fathers. Club shows, van tours and blast beats are earned the same way by everyone — which appears to be precisely the point.

Stepmother Jenny McCarthy and the Blended Family

Donnie met actress and presenter Jenny McCarthy in 2013, and they married on August 31, 2014, at the Hotel Baker in St. Charles, Illinois. McCarthy’s son Evan helped with the proposal, carrying a series of cards spelling out the question. Xavier, by then 21, gained a stepmother whose public profile was as large as his father’s — and a family that has made a project of blending well.

McCarthy has publicly praised Donnie’s parenting, and the couple’s reality show, Donnie Loves Jenny, gave viewers a brief look at the blended household — including those single-episode appearances by both of Donnie’s sons. The couple have renewed their vows repeatedly over the years, a ritual Donnie has said grew out of wanting to build shared traditions for their combined family. For xavier alexander wahlberg, the blended household stayed mostly off-camera.

Donnie’s own description of his parenting, given to People in December 2025, doubles as a description of the home his sons grew up in: “I love the relationship I have with my sons… I’m definitely bringing some of the softer side to Danny, which is more of a reflection of my parenting.” Danny Reagan, he notes, parents tougher than he does.

Where Is Xavier Alexander Wahlberg Now?

Now in his early thirties, he remains based in the Los Angeles-area metal scene, where Upon Stone continue to record and tour — the band’s most recent release, the End Time Lightning EP, arrived in 2025. There is no acting career to report: despite the family trade, his only screen credit of note remains that single reality-show episode, and searches for his name alongside film titles lead back to his father and uncles.

His personal life is, by design, undocumented. No reliable source reports a spouse, children or a public relationship, and he keeps no public social media accounts under his own name. For the same reason, his net worth is not publicly disclosed; figures attached to his name on low-quality websites are speculation, with no verified income, property or contract information behind them. That discretion is the settled position of xavier alexander wahlberg, and it has never wavered.

What can be said is that the experiment in privacy has largely worked. He is known inside heavy music as a working frontman with a major-label album to his name, and outside it mainly as a question — the famous son who chose the one corner of the entertainment industry where his surname is irrelevant.

Frequently Asked Questions

How old is Xavier Wahlberg?

He was born on March 4, 1993, which makes him 33 years old as of 2026. He arrived when his father Donnie was 23 and still in his first wave of New Kids on the Block fame.

Who are Xavier Wahlberg’s parents?

His father is Donnie Wahlberg, the New Kids on the Block singer and Blue Bloods star. His mother is Kimberly “Kim” Fey, a recording engineer. His parents married in 1999, separated in 2008 and finalised their divorce in 2010.

What band is Xavier Wahlberg in?

He is the vocalist and bassist of Upon Stone, a melodic death metal band from California’s San Fernando Valley signed to Century Media Records. The band released its debut album, Dead Mother Moon, in early 2024, and the End Time Lightning EP in 2025.

Is Xavier Wahlberg an actor?

No. Unlike his father and his uncles Mark and Robert, he has no film or television acting career. His only notable screen appearance was a single episode of his father’s reality series Donnie Loves Jenny.

Who is Xavier Wahlberg’s brother?

His younger brother is Elijah Hendrix Wahlberg, born August 20, 2001 — a musician who fronts the pop project Pink Laces. He also has a stepbrother, Evan Joseph Asher, the son of his stepmother Jenny McCarthy.

Why is Xavier Wahlberg so private?

By choice, according to his father. Donnie has described his eldest son as “very out of the spotlight,” and the family has respected that: he keeps no public social media presence and gives no interviews under his own name.

Conclusion

Xavier Alexander Wahlberg’s story is, in the end, a study in opposites: the boy-band heartthrob’s son who became a death metal frontman; the celebrity child who declined celebrity; the Wahlberg who is known, in his own scene, for music his father’s fans will mostly never hear. Raised by a pop star and a studio engineer, protected through a public divorce, and left alone to build his own sound, he has arrived at the rarest outcome available to a famous family — a life that is genuinely his own. He is not the only famous son to choose that bargain: Jasper Breckenridge Johnson, Don Johnson’s son, made a similar one.

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