Oona O'Brien’s biography: Age, height, birthday, parents, ethnicity

The Cobra Kai cast is just one big family, and everyone’s there to support each other and to cheer each other on. We’ve definitely been able to bond together at work.

Oona O'Brien is an American actress and model best known for her role as Devon Lee in the Netflix series Cobra Kai. She joined the show in its fourth season and continued through seasons five and six. The actress has also worked as a print and on-screen model since childhood. Oona O'Brien’s biography highlights her background, career, and achievements.

Key takeaways

• Oona O'Brien has worked as a print and on-screen child model since early childhood.
• In her work, she has promoted various brands, including Nike, American Girl, Sears, and Kmart.
• She is also active on various social media platforms, such as Instagram, with a dedicated audience.

Profile summary

Oona O'Brien's biography

Oona O'Brien is a talented actress and model born in Evanston, Illinois, the United States of America. The young celebrity's father is Christopher Liam O'Brien, and her mother is Cheong Kim. She grew up alongside her elder brother, Isoo, an avid birdwatcher.

Some believed that the actress is the daughter of the Radiohead guitarist Ed O'Brien, because they share the same last name.

What is Oona O'Brien's ethnicity?

The young actress has American nationality and is of mixed ethnicity. Oona O'Brien's father is white, and her mother is of Asian-American/Pacific Islander heritage.

Career

Before her big break on screen, Oona worked as a child model. She has appeared in numerous commercials and print ads since the age of 11. She also participated in several theatre productions such as:

• The Fig and the Wasp at Cara Haven Theatre
• Second City Youth Ensemble at Second City
• Annie at Pepper Rising Stars Theatre
• School of Rock as Tomika at UAC Theatre

The actress is represented by the Paonessa Talent Agency and the Brave Artists Management. She started her acting career in 2020 when she appeared in a short film named Sky High as Mia Savage. However, she became famous when she was cast in season 4 of the TV series Cobra Kai.

Who played Miss Lee in Cobra Kai?

Oona played Devon Lee in the film. Lee is a student and member of the debate team alongside Bert at West Valley High School. She is portrayed as an ambitious, competitive and self-driven young woman who excels in karate.

In an interview with Her Campus, O'Brien admitted that she carries the same traits in her real life. She said,

I definitely have her competitive mindset. I’m also very goal-oriented. I always have to have my Google Docs with all my goals. Devon’s sort of the same way. A little bit of type A.

According to her IMDb profile, Cobra Kai and Sky High are the only movies and TV shows Oona has starred in. The famous actress and model is also a karate and stage combat expert. The experience helped her get a role in the Cobra Kai movie. She is also an avid swimmer.

How tall is Oona O'Brien from Cobra Kai?

Oona O'Brien's height in feet is 5 feet 2 inches (157 centimetres), and she weighs about 125 pounds (57 kilograms). She has brown hair and dark brown eyes.

FAQs

1. What is Devon Lee's real name? Oona O'Brien is the actress's real name, and Devon Lee is the character she portrays in Cobra Kai.
2. Where was Oona O Brien born? Oona O’Brien was born in Chicago, Illinois, United States.
3. How old is Oona from Cobra Kai? Oona O'Brien's age is 19 years as of May 2025. She was born in 2006.
4. When is Oona O'Brien's birthday? The American actress celebrates her birthday on 15 September every year. Her zodiac sign is Virgo.
5. Is Oona O'Brien Asian? Yes, Oona O’Brien is part Asian. Her ethnic background includes Asian and Caucasian heritage.
6. What ethnicity is Oona? The American actress is of mixed ethnicity, specifically a blend of Asian and White American descent.
7. What is Oona O'Brien's Instagram? She has over 700k followers on Instagram, with over 130 posts.
8. Who is Oona O'Brien's mom? Oona O’Brien’s mother is Cheong Kim.

Oona O'Brien is a well-known young American actress and model. She is popularly known for her role in the TV series Cobra Kai. Although O'Brien only has two acting credits, she has proved to be one of the best young talents in the industry.

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Source: Legit.ng