Milly Alcock is one of the fastest-rising Australian actresses in global entertainment, best known for playing the young Rhaenyra Targaryen in HBO’s House of the Dragon and for stepping into the DC Universe as Kara Zor-El, better known as Supergirl. From a working-class Sydney upbringing to leading a major Hollywood blockbuster, her rise has been quick, remarkable, and closely followed by fans worldwide.
Milly Alcock became a household name almost overnight thanks to her Game of Thrones prequel role, and she cemented her status as a global star with her lead performance in James Gunn’s DC Universe film Supergirl (2026).
Quick Bio Table
| Detail | Information |
| Full Name | Amelia May Alcock |
| Age (2026) | 26 years old |
| Date of Birth | April 11, 2000 |
| Birthplace | Sydney, New South Wales, Australia |
| Nationality | Australian |
| Profession | Professional Australian Actress |
| Years Active | 2013 – Present |
| Height | 5 feet 5 inches tall (1.65 meters) |
| Zodiac Sign | Aries |
| Net Worth (2026) | $2million |
| Boyfriend | Reportedly dating London-based chef Joseph “Jo” Powell |
| Famous For | House of the Dragon, Supergirl |
Milly Alcock Biography
Amelia May Alcock, known professionally as Milly Alcock, was born on April 11, 2000, in Sydney, New South Wales, Australia. She grew up in the inner-Sydney suburb of Petersham alongside her two younger brothers, Eddy and Bertie.
Milly came from a working-class family with no prior ties to the entertainment industry, making her rise into Hollywood especially notable. She developed a passion for performing arts early, beginning her acting journey with a school production of Little Red Riding Hood at Taverners Hill Infants School.
She attended Stanmore Public School before moving on to Newtown High School of the Performing Arts, where her love for acting deepened. In 2018, Milly made the bold decision to drop out of high school when she was cast in the Australian drama series Upright — a turning point that set her professional career in motion.
Before landing her breakout international role, Alcock lived with her family in Sydney and worked side jobs, including part-time work at a café in Marrickville, to support herself while pursuing acting opportunities. In 2022, she relocated to London to focus on international projects.
Milly Alcock Wiki-Style Quick Facts
- Full birth name: Amelia May Alcock
- Birthplace: Sydney, New South Wales, Australia
- First acting role: School play, Little Red Riding Hood (childhood)
- Dropped out of high school: 2018, after being cast in Upright
- Breakout international role: Young Rhaenyra Targaryen in House of the Dragon
- Major franchise role: Kara Zor-El / Supergirl in the DC Universe
- Relocated to London: 2022
Milly Alcock Family & Parents
Milly Alcock was raised in Sydney by her mother, Emma Alcock, alongside her two younger brothers, Eddy (Eddie) and Bertie (Bert) Alcock. The family lived in the vibrant, working-class Sydney suburb of Petersham.
Unlike many young stars, Milly Alcock had no prior family connections to the entertainment industry, making her acting career entirely self-driven from a young age. Her modest upbringing is often highlighted in profiles about her, contrasting sharply with her current global fame.
Milly has kept most family details private, focusing media attention on her career rather than her personal background. However, her working-class roots and close family ties remain an important part of her public story, especially as she has spoken about balancing side jobs with acting auditions before her big break.
Milly Alcock Boyfriend: Dating Life
Milly Alcock has largely kept her personal life private, but reports suggest she is currently in a relationship with Joseph “Jo” Powell, a London-based chef who runs the food project Schoolnights Ltd. and has a background in hospitality.
The couple reportedly kept their relationship low-key before drawing public attention at the 2026 BAFTA Awards, where they made a red-carpet appearance together. Prior to this relationship, various entertainment outlets described Milly Alcock as single, with no major public relationships reported during her early rise to fame.
As with most details about her personal life, Milly has not given extensive public interviews specifically confirming or discussing her relationship status, keeping the focus primarily on her acting career.
Milly Alcock Career Timeline
2013–2014: Early Beginnings
Milly Alcock made her television debut as a teenager in a 2014 episode of the Australian series Wonderland, marking her first professional acting credit.
2017: Fighting Season
She played Maya Nordenfelt in the Showcase drama Fighting Season, gaining early recognition in Australian television.
2018: Feature Film Debut
Alcock made her feature film debut in the fantasy thriller The School (2018), expanding her resume beyond television.
2018: Leaving School for Acting
Milly dropped out of Newtown High School of the Performing Arts after being cast in a leading role in the Foxtel drama Upright, a decision that marked a major turning point in her career.
2019–2022: Upright
She starred as teenager Meg in the acclaimed Foxtel comedy-drama Upright, earning an AACTA Award nomination for her performance — one of her most celebrated Australian roles.
2022–2024: House of the Dragon — Global Breakthrough
Milly Alcock was cast as the young Princess Rhaenyra Targaryen in HBO’s Game of Thrones prequel series House of the Dragon. Her performance earned widespread critical acclaim and a Critics’ Choice Television Award nomination for Best Supporting Actress in a Drama Series.
2025: Sirens
She starred alongside Julianne Moore and Meghann Fahy in Netflix’s dark comedy limited series Sirens, further expanding her international profile beyond the fantasy genre.
2025: Superman Cameo
Milly Alcock appeared in an uncredited cameo as Kara Zor-El in James Gunn’s Superman (2025), setting up her future role in the DC Universe.
2026: Supergirl — Leading Role
Alcock led her first major blockbuster as Kara Zor-El in Supergirl (2026), directed by Craig Gillespie, marking her transition from prestige television to full-scale franchise filmmaking.
2026 and Beyond: Man of Tomorrow
She is confirmed to reprise her role as Supergirl in Man of Tomorrow, James Gunn’s Superman sequel, with DC Studios reportedly planning further appearances for her character in future DCU films.
Milly Alcock Movies & TV Shows List
| Year | Project | Role | Type |
| 2014 | Wonderland | TV debut role | TV Series |
| 2017 | Fighting Season | Maya Nordenfelt | TV Series |
| 2018 | The School | Lead Role | Film |
| 2019–2022 | Upright | Meg | TV Series |
| 2022–2024 | House of the Dragon | Young Rhaenyra Targaryen | TV Series |
| 2025 | Sirens | Supporting Role | Netflix Limited Series |
| 2025 | Superman | Kara Zor-El (cameo) | Film |
| 2026 | Supergirl | Kara Zor-El / Supergirl | Film |
| 2027 (upcoming) | Man of Tomorrow | Kara Zor-El / Supergirl | Film |
Milly Alcock: House of the Dragon
Milly Alcock’s role as the young Rhaenyra Targaryen in House of the Dragon remains one of the most important turning points in her career. The HBO prequel to Game of Thrones introduced her to a massive global audience and earned her widespread critical praise.
Her performance captured Rhaenyra’s royal confidence, emotional vulnerability, and rebellious spirit, earning her a Critics’ Choice Television Award nomination for Best Supporting Actress in a Drama Series. This role is widely credited with catching the attention of DC Studios co-CEOs James Gunn and Peter Safran, which eventually led to her casting as Supergirl.
Fans often note the striking resemblance between Alcock and Emma D’Arcy, who plays the older version of Rhaenyra — though the two actresses are not related in real life.
Milly Alcock: Superman & Supergirl
Milly Alcock’s entry into the DC Universe began with a brief, uncredited cameo as Kara Zor-El at the end of James Gunn’s Superman (2025). This appearance served as a setup for her subsequent lead role in Supergirl.
Supergirl (2026), directed by Craig Gillespie, marked Milly Alcock’s first time leading a major studio blockbuster. The film followed Kara’s intergalactic quest for vengeance and justice, and represented a significant leap from prestige television into full-scale franchise filmmaking.
Despite a large production budget of around $170 million plus roughly $120 million in marketing, Supergirl underperformed at the box office, opening to about $38 million domestically and roughly $68 million worldwide. However, industry reports and critics largely placed the blame on the film’s overall reception rather than Alcock’s performance, and DC Studios has already confirmed her return in Man of Tomorrow, with plans for her character to remain a significant part of the franchise going forward.
Milly Alcock Net Worth
As of 2026, Milly Alcock’s net worth is estimated to range between $2 million, according to multiple entertainment finance trackers. This wide range reflects her rapid but still-developing transition from Australian television to major Hollywood blockbusters.
Income Sources
- Television salaries — Earnings from Upright, House of the Dragon (reportedly $500,000–$750,000 across her appearances), and Sirens
- Film salaries — Including her reported $400,000 base salary for leading Supergirl (2026)
- Franchise future earnings — Confirmed return in Man of Tomorrow and additional planned DCU appearances
- Brand endorsements — Growing opportunities tied to her rising global profile
- Early career work — Small roles and side jobs prior to her breakout, including café work in Sydney
Reports from Variety indicate Milly Alcock’s Supergirl paycheck was notably lower than her co-stars from Superman — David Corenswet and Rachel Brosnahan each reportedly earned $750,000, while Nicholas Hoult earned $2 million as Lex Luthor. Industry analysts have compared her deal structure to Gal Gadot’s early Wonder Woman salary, suggesting her earning power is likely to grow significantly as her franchise involvement continues.
Milly Alcock Salary Per Project (Estimated)
| Project | Estimated Fee |
| House of the Dragon (total across appearances) | $500,000 – $750,000 |
| Supergirl (2026, base salary) | ~$400,000 |
| Man of Tomorrow (upcoming) | Expected increase (unconfirmed) |
| Early Australian TV roles | Undisclosed, modest |
Note: These are industry-reported estimates, not officially confirmed figures.
Milly Alcock Physical Stats Table
| Attribute | Detail |
| Height | 5 feet 5 inches tall (1.65 meters) |
| Weight | does not have an officially published |
| Hair Color | Dark blonde or light brown |
| Eye Color | Blue |
| Zodiac Sign | Aries |
| Pronouns | She/Her |
Milly Alcock Nationality
Milly Alcock is Australian, born and raised in Sydney, New South Wales. She first built her career in Australian television before achieving international recognition through House of the Dragon and, later, the DC Universe.
Her journey from local Sydney productions to leading a major American superhero franchise reflects the growing global influence of Australian talent in mainstream Hollywood cinema.
Milly Alcock Education
Milly Alcock attended Stanmore Public School in Sydney before enrolling at Newtown High School of the Performing Arts, where her passion for acting grew significantly.
In 2018, she made the decision to leave high school after securing a leading role in Upright — a bold choice that prioritized her acting career over traditional schooling and ultimately paid off with her international breakthrough just a few years later.
Milly Alcock Instagram & Social Media
Milly Alcock is active on Instagram under the handle @millyalcock, where she shares candid photos with friends alongside professional photoshoots and behind-the-scenes moments from her work.
Her social media presence has grown substantially alongside her career, especially following her casting as Supergirl, though she maintains a relatively low-key, authentic approach compared to many of her Hollywood peers.
Milly Alcock Awards & Recognition
| Award | Category | Project | Result |
| AACTA Awards | Nomination | Upright | Nominated |
| Critics’ Choice Television Awards | Best Supporting Actress in a Drama Series | House of the Dragon | Nominated |
While Milly Alcock has not yet secured a major industry win, her nominations across Australian and international award circuits reflect her rapid rise and growing critical recognition, especially following her performance in House of the Dragon.
Milly Alcock 2026: What’s Next
2026 has been a landmark year for Milly Alcock, marked by her leading role in Supergirl and her continued expansion into major Hollywood franchise filmmaking. Despite the film’s box-office underperformance, her position within the DC Universe remains secure.
She is confirmed to return as Kara Zor-El in Man of Tomorrow, James Gunn’s Superman sequel, with DC Studios reportedly planning additional appearances for her character beyond that film. This suggests a long-term commitment to Alcock as a central figure in the rebooted DC Universe.
Alongside her franchise work, her earlier 2025 project Sirens — alongside Julianne Moore — demonstrated her range outside of fantasy and superhero genres, suggesting a career built on versatility rather than reliance on a single franchise.
Milly Alcock: Global & Industry Relevance
Milly Alcock’s career reflects the growing global reach of Australian actors in mainstream Hollywood and streaming entertainment. Her rise from local Sydney television to headlining a major DC Studios blockbuster mirrors a broader trend of international talent finding major opportunities in American franchise filmmaking.
Her association with two major entertainment giants — HBO and DC Studios — places her at the center of both prestige television and blockbuster superhero cinema, giving her relevance across multiple audience segments worldwide, from Game of Thrones fans to DC Universe followers.
Milly Alcock Facts You Might Not Know
- She made her television debut at just 14 years old in Wonderland (2014).
- She dropped out of high school in 2018 to pursue acting full-time.
- She worked part-time at a café in Marrickville, Sydney, before her big break.
- She relocated to London in 2022 to focus on international opportunities.
- She reportedly earned $400,000 for leading Supergirl — notably less than her Superman co-stars.
- She is confirmed to return as Supergirl in Man of Tomorrow.
- Fans often confuse her with House of the Dragon co-star Emma D’Arcy due to their striking resemblance, though the two are not related.
Frequently Asked Questions
How old is Milly Alcock?
Milly Alcock is 26 years old as of 2026, born on April 11, 2000.
What is Milly Alcock’s net worth?
Her estimated net worth in 2026 ranges between $2 million.
Where is Milly Alcock from?
She was born and raised in Sydney, New South Wales, Australia.
Who is Milly Alcock’s boyfriend?
She is reportedly dating London-based chef Joseph “Jo” Powell as of 2026.
What is Milly Alcock known for?
She is best known for playing young Rhaenyra Targaryen in House of the Dragon and Kara Zor-El in the DC Universe’s Supergirl.
How much did Milly Alcock earn for Supergirl?
She reportedly earned a base salary of around $400,000 for leading the film.
How tall is Milly Alcock?
She stands at 5 feet 5 inches tall (1.65 meters).
Is Milly Alcock returning as Supergirl?
Yes, she is confirmed to reprise her role in Man of Tomorrow, James Gunn’s Superman sequel.
Who are Milly Alcock’s parents?
She was raised by her mother, Emma Alcock, alongside her two younger brothers, Eddy and Bertie.
Conclusion
Milly Alcock’s journey from a working-class Sydney upbringing to leading a major DC Studios blockbuster is a remarkable Hollywood success story. Her breakout performance in House of the Dragon opened the door to international stardom, and her casting as Supergirl in the DC Universe confirmed her status as one of the industry’s most promising young leads.
With her confirmed return in Man of Tomorrow and continued involvement in the DC Universe, alongside earlier standout work in Upright and Sirens, Milly Alcock’s career shows strong momentum heading further into 2026 and beyond. Whether you’re searching for her age, height, net worth, boyfriend, or full movie list, Milly Alcock remains one of the most exciting rising stars to watch in global entertainment today.