Milly Alcock – Age, Height, Movies and Relationship Status
Australian actress Milly Alcock has become one of the most recognizable young talents in the entertainment industry, rising from local television roles to a major part of the DC Universe. Known for her portrayal of young Rhaenyra Targaryen in House of the Dragon, she has since taken on the mantle of Supergirl. This article provides a comprehensive look at her age, background, career milestones, and personal life based on available public records.
From a childhood performance as Little Red Riding Hood to leading a blockbuster superhero film, Alcock’s trajectory has been swift. She has demonstrated range across genres, from the dark fantasy of Westeros to the gritty comedy of the Australian outback. As of July 2026, here is everything known about the actress.
How old is Milly Alcock and what is her background?
- Full Name: Amelia May Alcock
- Age: 26 (born 11 April 2000)
- Height: 5 ft 5 in (165–168 cm)
- Known For: House of the Dragon, Upright, Supergirl
Key Insights
- Milly Alcock rose to international fame as young Rhaenyra Targaryen in HBO’s House of the Dragon.
- She was nominated for an AACTA Award for her comedic role in the series Upright.
- Alcock was cast as Kara Zor-El / Supergirl in the DC Universe film released in 2026.
- Despite public curiosity, Alcock is not married and has been in a relationship with chef Jo Powell since at least June 2025.
- She attended Newtown High School of the Performing Arts but left in 2018 to star in Upright.
- She made her professional acting debut in 2013 with a guest role on A Place to Call Home.
- Her performance in Upright won her the Casting Guild of Australia Rising Star Award in 2018.
Biographical Snapshot
| Detail | Information |
|---|---|
| Full Name | Amelia May Alcock |
| Date of Birth | April 11, 2000 |
| Age (as of July 2026) | 26 years |
| Place of Birth | Sydney, New South Wales, Australia |
| Nationality | Australian |
| Ethnicity | White Australian |
| Height | 5 ft 5 in (1.65–1.68 m) |
| Education | Newtown High School of the Performing Arts (dropped out in 2018) |
| Horoscope | Aries |
| Profession | Actress |
Alcock’s real name is Amelia May Alcock, though she is known professionally as Milly. She was raised in Petersham, a suburb of Sydney, and is the eldest of three children, with two younger brothers including one named Bert. Her ethnicity is consistently described as White Australian, with no public indication of mixed heritage according to available biographies.
Is Milly Alcock married or in a relationship?
Milly Alcock is not married. According to a report from People, she is in a relationship with London-based chef Jo Powell. Alcock publicly confirmed the relationship in June 2025. Previously, there were rumors about other potential partners, but Powell is her only confirmed boyfriend as of mid-2026.
The couple’s relationship has attracted significant fan attention, though Alcock has generally kept details about her personal life private. No engagement or marriage plans have been publicly announced or reported by credible sources.
While Alcock has confirmed her relationship with Jo Powell, there is no official public statement regarding an engagement, a wedding date, or any previous long-term relationships. All information about her romantic life before 2025 is based on unverified fan speculation.
What movies and TV shows has Milly Alcock starred in?
House of the Dragon
Alcock’s breakout role came in 2022 when she was cast as the young Rhaenyra Targaryen in HBO’s House of the Dragon, the prequel to Game of Thrones. Her performance earned her a nomination for a Critics’ Choice Award for Best Supporting Actress. She portrayed the character in Season 1 and made brief appearances in Season 2, with her role concluding after the time jump.
Upright
Before her global fame, Alcock starred as Meg Adams in the Foxtel comedy-drama series Upright, which aired from 2019 to 2022. Her performance was nominated for the AACTA Award for Best Comedy Performer. The role also earned her the Casting Guild of Australia Rising Star Award in 2018, before the show even aired.
Supergirl and the DC Universe
Alcock made her first appearance as Kara Zor-El / Supergirl in the 2025 film Superman, in an uncredited cameo. She then starred as the lead in the standalone film Supergirl, which was released on June 26, 2026. The film marked a major milestone in her career, though it received mixed critical reviews and underperformed at the box office. Alcock is the fifth actress to portray Supergirl in live-action, and the third to do so in a feature film.
Other notable credits
Her filmography includes guest roles on Australian television series such as Janet King (2014), Pine Gap (2018), Fighting Season (2018), Les Norton (2019), and Reckoning (2019). She also held a lead role in the supernatural drama The Gloaming (2020). In 2025, she appeared as a lead in the Netflix dark comedy limited series Sirens, alongside Julianne Moore and Meghann Fahy.
Alcock’s career spans fantasy, comedy, drama, and superhero genres. Her role in Upright demonstrated a strong comedic ability that differed significantly from her dramatic work in House of the Dragon, showcasing her versatility as a performer.
What is Milly Alcock’s height and appearance details?
Milly Alcock’s height is consistently reported as approximately 5 feet 5 inches. There is a minor discrepancy between sources: IMDb lists her height as 1.65 meters, while other biographical sources, such as Hamariweb, cite 1.68 meters (roughly 5 feet 6 inches). Her weight is reported at approximately 45 kg (99 lbs).
Regarding questions about her teeth
Some online discussions have speculated about changes in Alcock’s dental appearance over time. It is important to note that no official source, medical professional, or the actress herself has publicly addressed these observations. Any claims about cosmetic dental work remain purely speculative and unconfirmed.
What are Milly Alcock’s upcoming projects?
As of mid-2026, Alcock’s most significant recent project is the release of Supergirl on June 26, 2026. The film is a major part of the new DC Universe under James Gunn. Beyond this, her Netflix limited series Sirens, which premiered on May 22, 2025, is available for streaming.
Regarding other projects, there has been no official announcement about a new season of Upright. Alcock’s role in House of the Dragon has concluded following the narrative time jump, and there has been no confirmed return for future seasons. Her next professional moves remain unannounced, but her profile as a leading actress suggests continued high-profile opportunities.
Timeline of key career events
- : Born in Sydney, Australia.
- : First credited television role on A Place to Call Home.
- : Won the Casting Guild of Australia Rising Star Award for her casting in Upright.
- –: Starred in the Foxtel comedy-drama Upright.
- : Cast as young Rhaenyra Targaryen in House of the Dragon, leading to global recognition and a Critics’ Choice Award nomination.
- : Announced as the new Supergirl in James Gunn’s DC Universe.
- : Made an uncredited cameo as Supergirl in Superman; starred in the Netflix series Sirens.
- : Supergirl released on June 26.
Established facts and open questions
Confirmed details
- Milly Alcock was born on 11 April 2000.
- She played young Rhaenyra Targaryen in House of the Dragon.
- She is cast as Supergirl, confirmed by Warner Bros. and visible in the released film.
- She is in a relationship with chef Jo Powell as of June 2025.
- She is of White Australian ethnicity from Sydney.
Unconfirmed details
- Her exact net worth is not publicly confirmed; estimates range from $3–5 million AUD.
- No official source has confirmed or denied speculation about changes to her teeth.
- Details about her relationship prior to 2025 are not publicly verified.
- Her specific future projects beyond Supergirl and Sirens have not been announced.
- The exact height figure varies slightly between 1.65 m and 1.68 m depending on the source.
Understanding Milly Alcock’s career trajectory
Milly Alcock’s casting as Supergirl represents a significant transition from independent Australian productions and prestige television to a global blockbuster franchise. Her earlier work on House of the Dragon placed her in the spotlight, but her performance in Upright demonstrated a comedic range that made her a versatile choice for the role of Kara Zor-El.
The public’s intense curiosity about her personal life—including questions about her age, relationship status, and physical appearance—is a common phenomenon for rising stars. Much of this interest, however, is based on speculation rather than confirmed facts. Alcock has maintained a relatively private public persona, using social media primarily for professional announcements rather than personal disclosures.
What do official sources say about Milly Alcock?
“Amelia May Alcock (born 11 April 2000) is an Australian actress.”
“Alcock is known for House of the Dragon and Upright.”
— IMDb
“Milly Alcock cast as Supergirl in upcoming DC film.”
— Warner Bros. press release (2024)
What is next for Milly Alcock?
Milly Alcock continues to rise as one of Australia’s most prominent young actresses, with a career spanning television, film, and international fantasy franchises. While her role in Supergirl has defined her recent trajectory, her earlier work demonstrates a versatility that suggests a long and varied career ahead. Fans and industry observers alike are watching closely for her next announced project.
Frequently asked questions
What is Milly Alcock’s net worth?
Her net worth is not publicly disclosed by any reliable source. Various unverified estimates place it between $3–5 million AUD, but these figures are not confirmed.
Does Milly Alcock have any siblings?
Yes, she has two younger brothers. One of her siblings is named Bert Alcock, as noted in public records.
Where was Milly Alcock born?
She was born in Sydney, New South Wales, Australia, and raised in the suburb of Petersham.
How tall is Milly Alcock?
She is approximately 5 feet 5 inches (1.65–1.68 meters) tall, depending on the source.
What is Milly Alcock’s real name?
Her full birth name is Amelia May Alcock.
What is the series Upright about?
Upright is an Australian comedy-drama series in which Alcock plays Meg Adams. It aired on Foxtel from 2019 to 2022 and earned her an AACTA Award nomination.
Is Milly Alcock playing Supergirl?
Yes, she portrays Kara Zor-El / Supergirl in the 2026 film Supergirl, after an uncredited cameo in 2025’s Superman.
When is Milly Alcock’s birthday?
Her birthday is April 11, 2000.
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