Arlo McKillop attracts attention for an unusual reason: his name is connected to British comedy in several ways, yet he has largely stayed outside the celebrity spotlight. He is the eldest son of comedian, writer and television presenter Lee Mack—whose full name is Lee Gordon McKillop—and he also has a genuine screen credit of his own.
That credit came in the 2013 Christmas special of Lee Mack’s BBC sitcom Not Going Out, where Arlo played a Victorian boy. His name also became part of his father’s professional story through Arlo Productions, the company associated with several Lee Mack projects. Beyond those connections, Arlo has maintained a notably private profile, making it important to separate documented facts from recycled online claims.
Quick Bio
| Detail | Information |
|---|---|
| Full Name | Arlo McKillop |
| Known For | Son of British comedian and actor Lee Mack; appearance in Not Going Out |
| Father | Lee Mack (Lee Gordon McKillop) |
| Mother | Tara McKillop |
| Siblings | Louie McKillop and Millie McKillop |
| Nationality | British |
| Acting Credit | Victorian Boy in the 2013 Not Going Out Christmas special, The House |
| TV Production Credit | Question verifier on a 2025 The 1% Club special |
| Family Connection | Lee Mack’s former company, Arlo Productions, was named after him |
| Birth Year | Approximately 2004–2005; exact date is not reliably confirmed |
| Net Worth | Not publicly verified |
| Public Profile | Largely private |
Why Arlo McKillop’s Name Keeps Appearing
People searching for Arlo McKillop are usually trying to establish how he is connected to Lee Mack and whether he followed his father into acting. The answer is more limited than some online biographies suggest.
British Comedy Guide lists Arlo as the Victorian Boy in “The House”, the 2013 Christmas special of Not Going Out. IMDb gives the same credit, and the episode’s cast list places him alongside Lee Mack, Sally Bretton, Geoffrey Whitehead, Deborah Grant, Bobby Ball and Katy Wix.
That appearance is the clearest verified basis for describing Arlo as an actor. There is not, however, a substantial publicly documented acting career behind it. It is more accurate to say that he made a credited television appearance than to assume he has pursued acting professionally on a continuing basis.
The Not Going Out Christmas Appearance
“The House” was broadcast on BBC One on 24 December 2013 as a 45-minute Christmas special. The story moved Lee, Lucy and other familiar characters to an old country house, where an apparently supernatural presence became part of the comedy.
Arlo appeared as the Victorian Boy. British Comedy Guide’s episode record identifies him in the guest cast, while its Not Going Out trivia section notes that the ghostly boy was played by Lee Mack’s real-life son. IMDb independently credits Arlo with the same role.
The cameo has endured online because of that family connection. It also shows how Lee Mack’s real family has occasionally crossed into the fictional world of Not Going Out without turning his children into regular public figures.
The Family Link to Lee Mack
Lee Mack became one of Britain’s most recognisable television comedians through stand-up, panel shows and sitcom work. His career includes creating and starring in Not Going Out, appearing as a team captain on Would I Lie to You? and hosting ITV’s The 1% Club.
Arlo is one of Lee Mack and Tara McKillop’s three children. In a 2009 Guardian interview, Lee described himself as married with two boys, Arlo and Louie. Later public profiles identify the couple’s children as Arlo, Louie and Millie.
Public information about the children remains limited compared with Lee’s career. Arlo’s name is searchable because his father is famous, but that does not make unverified details about his education, relationships or private life reliable simply because they appear on biography websites.
How Old Is Arlo McKillop?
Arlo McKillop’s exact date of birth is not firmly established by a strong primary public source, and published references have sometimes contradicted one another.
A Guardian interview published in January 2009 quoted Lee Mack saying that Arlo was four years old. A later Radio Times interview described Arlo as 13. Those contemporary references broadly place his birth around 2004 or 2005.
Some databases list a different year, including British Comedy Guide’s current profile, so presenting a single exact date as settled fact would create false certainty. The safest conclusion is that Arlo was born around 2004–05, while his exact birthday has not been reliably established in the public record.
Why Arlo Productions Matters to His Story
Arlo’s connection to his father’s career extends beyond one sitcom episode. Lee Mack also used his son’s name for Arlo Productions, a television production company associated with several of his projects. IMDb’s profile for Arlo notes that the company was named after him.
British Comedy Guide describes Arlo Productions as founded by Lee Mack and lists credits including Not Going Out, Lee Mack Going Out Live and Lee Mack’s All Star Cast. It also records that Not Going Out was produced in association with Arlo Productions from Series 5 through the 2015 special.
The company is independently verifiable through Companies House. Arlo Productions Limited, company number 05575399, was incorporated on 27 September 2005 and dissolved on 30 June 2017. Official records show that a members’ voluntary liquidation began in 2016.
The name therefore became attached to a meaningful period of Lee Mack’s television work, even though Arlo himself was not the public face of the company.
Lee Mack’s Career Keeps the Family Name Visible
Understanding interest in Arlo also means understanding how visible Lee Mack remains in British entertainment.
Lee studied at Brunel University and developed his stand-up work during that period. British Comedy Guide records that he won So You Think You’re Funny? in 1995, and Brunel later awarded him an honorary Doctor of Humanities for his contribution to the arts.
Not Going Out first aired in 2006 and became the defining scripted project of his television career. By 2026, British Comedy Guide listed the programme at 15 series, with Series 15 scheduled on BBC One.
Lee also remains closely associated with The 1% Club. ITV announced in May 2026 that the quiz show had secured a new three-year deal, confirming his continued role as host. That sustained visibility naturally keeps interest in the McKillop family alive, even though Arlo has not built a comparable public career.
Was Arlo McKillop Involved With The 1% Club?
There is evidence of a behind-the-scenes connection, but it should be described precisely.
IMDb’s full credits for the 2025 Soccer Aid Special of The 1% Club list Arlo McKillop as a question verifier. That is different from appearing as a contestant, actor or presenter.
Because public information is limited, one production credit should not be stretched into a broader career narrative. What can be said is that Arlo’s name appears in the production team for that special, while his best-known on-screen credit remains the 2013 Not Going Out Christmas episode.
A Public Name, but a Private Life
One of the most striking things about Arlo McKillop is how little verified personal information exists despite years of curiosity. There is no strong public evidence supporting many detailed claims circulated online about his education, romantic life, earnings or independent business ventures.
That absence is not a gap that should be filled with guesswork. It reflects a comparatively private life beside a famous parent.
The same applies to wealth estimates. No authoritative public financial record establishes an individual net worth for Arlo McKillop, so figures attached to his name on celebrity-style websites should not be treated as confirmed personal wealth.
His public profile is best understood through a few documented links: he is Lee Mack’s son, he played the Victorian Boy in the 2013 Not Going Out Christmas special, his name was used for Arlo Productions, and he later received a production credit connected with The 1% Club.
Conclusion
Arlo McKillop is notable less for a conventional celebrity career than for the distinctive ways his name intersects with Lee Mack’s television work. His verified public record includes a childhood cameo in Not Going Out, the production company named after him and a later behind-the-scenes credit linked to The 1% Club.
Beyond those connections, Arlo has remained comparatively private. The clearest picture is therefore a modest one: he is part of a well-known British comedy family, but his own public profile is far smaller and more carefully defined than many online biographies suggest.
FAQs.
Who is Arlo McKillop?
Arlo McKillop is the eldest son of English comedian, actor, writer and presenter Lee Mack and Tara McKillop. He is publicly known for a small role in the 2013 Not Going Out Christmas special and for sharing his name with Lee Mack’s former production company, Arlo Productions.
Is Arlo McKillop an actor?
He has a verified acting credit. Arlo played a Victorian Boy in “The House”, the 2013 Christmas special of Not Going Out. Public records do not show a large continuing acting résumé, so it would be misleading to present him as having an extensive professional acting career.
How old is Arlo McKillop?
His exact birth date is not reliably confirmed in authoritative public records. Contemporary interviews with Lee Mack indicate that Arlo was around four in early 2009 and around 13 in 2018, placing his birth approximately in 2004–05.
Why did Lee Mack call his company Arlo Productions?
The company was named after his son Arlo. Arlo Productions worked on several Lee Mack projects, including Not Going Out. Companies House records show that Arlo Productions Limited was incorporated in 2005 and dissolved in 2017.
Does Arlo McKillop work on The 1% Club?
IMDb credits Arlo McKillop as a question verifier on the programme’s 2025 Soccer Aid Special. That is a behind-the-scenes production credit, not an acting or presenting role. Public information does not establish a broader ongoing role on the programme.
READ THIS TOO: Louie McKillop: Lee Mack’s Son and His First Steps on Screen
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