
Introduction
Aidan Gallagher is not just another Hollywood star—he’s a young prodigy who has made waves in acting, music, and environmental activism. Born on September 18, 2003, in Los Angeles, California, Gallagher rose to fame with his breakout role as Number Five in Netflix’s The Umbrella Academy. But his talents don’t stop there—he’s also a musician, UN Goodwill Ambassador, and passionate environmentalist.
At just 21 years old (as of 2025), Gallagher has already achieved what many actors dream of in a lifetime. From starring in Nickelodeon’s Nicky, Ricky, Dicky & Dawn to becoming the youngest UN Environment Goodwill Ambassador at 14, his career is a testament to his versatility and dedication.
This article dives deep into Aidan Gallagher’s life, career, and latest updates (2025), covering everything from his height, filmography, music, net worth, personal life, and activism. Whether you’re a fan of The Umbrella Academy or curious about his environmental work, this guide has it all.
Who is Aidan Gallagher?
Aidan Gallagher is an American actor, musician, and environmental activist best known for his roles in Netflix’s The Umbrella Academy and Nickelodeon’s Nicky, Ricky, Dicky & Dawn.
Key Highlights of His Career:
- Breakthrough Role: Played Number Five in The Umbrella Academy (2019–2024), a time-traveling assassin trapped in a teenager’s body. His performance earned critical acclaim and a massive fan following.
- Early Success: Started as Nicky Harper in Nicky, Ricky, Dicky & Dawn (2014–2018), earning two Kids’ Choice Awards nominations.
- Youngest UN Ambassador: At 14, he was named the UN Environment Goodwill Ambassador for North America, focusing on climate action and wildlife conservation.
- Music Career: An independent artist, he has released six singles, including “4th of July” and “Miss You” (a duet with Trinity Rose).

Gallagher’s unique blend of Hollywood stardom and activism makes him a standout figure among young celebrities.
Must Read: /lizzy-greene/
Aidan Gallagher’s Height
One of the most searched topics about Aidan is his height. Fans often wonder how tall he is, especially since he plays a 58-year-old man in a teen’s body in The Umbrella Academy.
Attribute | Measurement |
---|---|
Height | 5’5″ – 5’7″ (165–170 cm) |
Weight | Approx. 130 lbs (59 kg) |
Eye Color | Blue |
Hair Color | Dark Brown |
Despite his average height, Gallagher’s charisma and acting skills make him a commanding presence on screen.
Aidan Gallagher’s Movies and TV Shows
Gallagher’s acting career spans over a decade, with roles in TV shows and films. Below is a complete list of his notable works:
Year | Title | Role | Type |
---|---|---|---|
2013 | Modern Family | Alec (uncredited) | TV Episode |
2014–2018 | Nicky, Ricky, Dicky & Dawn | Nicky Harper | TV Series |
2019–2024 | The Umbrella Academy | Number Five | TV Series |
2022 | Bloomberg QuickTake: Climate Minded | Himself (Activist) | Documentary |
Critical Acclaim:
- His portrayal of Number Five was praised by The New York Times as “carrying the show as far as he can” .
- The Hollywood Reporter called his performance “very good in a tricky role.

Aidan Gallagher in 2025
As of 2025, Gallagher remains a prominent figure in Hollywood and environmental activism.
Latest Updates:
- Completed The Umbrella Academy Season 4 (final season) .
- Continues as UN Ambassador, focusing on climate action pledges via his @TreesWithAidan initiative .
- Rumored Music Comeback—fans speculate new releases after his 2020 singles.
His influence extends beyond acting, making him a role model for young activists.
Aidan Gallagher’s Songs List (Discography)
Beyond acting, Aidan is an independent musician, blending alternative rock and pop in his releases. Below is his complete discography as of 2025:
Song Title | Year | Collaboration | Notes |
---|---|---|---|
“Blue Neon” | 2018 | Solo | Debut single |
“Miss You” | 2019 | Trinity Rose | Duet with The Voice contestant |
“Time” | 2019 | Solo | Released during Umbrella Academy filming |
“For You” | 2019 | Solo | Acoustic ballad |
“I Love You” | 2020 | Solo | Dropped during COVID-19 lockdown |
“4th of July” | 2020 | Solo | Inspired by Umbrella Academy S2 |
Did You Know?
- Gallagher writes and produces his music, playing bass, guitar, and keyboards .
- His “Blue Neon Tour” (2020) was canceled due to the pandemic.

Aidan Gallagher Shirtless: Fitness and Style
Fans often search for shirtless photos of Aidan, especially after his action-packed scenes in The Umbrella Academy. While he maintains a lean physique, he’s private about his fitness routine.
Key Points:
- No official shirtless scenes in The Umbrella Academy (his character wears a signature schoolboy outfit).
- Occasionally shares athletic posts on Instagram, hinting at yoga and outdoor workouts.
- Advocates for veganism as part of his environmental ethos, which may influence his diet.
Aidan Gallagher’s Age
Born on September 18, 2003, Aidan is 21 years old as of 2025.
Milestones:
- 14 years old: Became the youngest UN Goodwill Ambassador .
- 16 years old: Landed The Umbrella Academy, his breakout role.
- 21 years old: Completed the final season of The Umbrella Academy and continues activism.
Aidan Gallagher Net Worth and Ethnicity
Aidan’s success in acting and music has built a substantial net worth.
Category | Details | Source |
---|---|---|
Net Worth (2025) | $3–5 million | [Celebrity Net Worth estimates] |
Primary Income | Acting (Umbrella Academy, Nickelodeon), Music, Brand Endorsements | |
Ethnicity | White (Mixed European descent) | [Wikipedia] |
Fun Fact:
- His Jewish heritage influences his advocacy for social justice.
Aidan Gallagher Nationality and Religion
- Nationality: American (born in Los Angeles, California) .
- Religion: Jewish—often speaks about values of tikkun olam (repairing the world) in his activism.

Career Highlights
Aidan’s career is a mix of entertainment and activism:
Acting Breakthrough:
- Nicky, Ricky, Dicky & Dawn (2014–2018) .
- The Umbrella Academy (2019–2024) .
Music: Six singles released independently.
Activism:
- @TreesWithAidan (1M tree-planting pledge) .
- Speaker at UN Youth Climate Summit and Illegal Wildlife Trade Conference.
Aidan Gallagher’s Parents
Gallagher keeps his family private, but sources confirm:
- Parents: Unnamed; supportive of his career from a young age.
- Upbringing: Raised in L.A. with emphasis on education and activism.
Aidan Gallagher’s Wife
As of 2025, Aidan is not married. He’s focused on his career and environmental work.
Aidan Gallagher Siblings
No public records confirm siblings. Aidan refers to his Umbrella Academy co-stars as his “on-screen family”.
Aidan Gallagher Girlfriend
Gallagher is private about his dating life. Rumors linked him to The Voice’s Trinity Rose (2019), but neither confirmed it.
Conclusion
Aidan Gallagher is a 21st-century Renaissance man—actor, musician, and activist. From stealing scenes as Number Five to advocating for climate action, he proves that youth can drive global change.
Final Takeaways:
- Career: Umbrella Academy solidified his Hollywood status.
- Activism: UN Ambassador role highlights his generational impact.
- Future: Watch for new music and deeper environmental work.