1994–2004: Early work Oh came to prominence in her home country for her lead performance in the Canadian film
Double Happiness (1994), playing Jade Li, a twenty-something Chinese-Canadian woman negotiating her wishes and those of her parents. The film received critical acclaim, with
Roger Ebert praising Oh's "warm performance".
Janet Maslin of
The New York Times also praised her performance, saying: "Ms. Oh's performance makes Jade a smart, spiky heroine you won't soon forget." Oh won the
Genie Award for
Best Actress for the role. In 1995 she appeared in the Canadian film
Little Criminals with a multi-scene, but uncredited, performance. In 1997, she appeared in the film
Bean, playing the supporting role of Bernice, the art gallery PR manager. Her other Canadian films include
Long Life, Happiness & Prosperity and
Last Night (1998), for which she again won a Best Actress Genie. She was cast in the drama
Dancing at the Blue Iguana (2000), playing a stripper at a gentlemen's club opposite
Daryl Hannah. The film received mediocre reviews, though Oh was praised for her performance.
The New York Times review said, "Oh make[s] the most of [her] opportunity to explore the vulnerability below [her] characters' hard-edged surface." The same year, she appeared in the drama
Waking the Dead. In 2002, Oh appeared in the family comedy
Big Fat Liar, followed by a minor role in
Steven Soderbergh's
Full Frontal (2002). Oh garnered critical acclaim for her seven seasons as Rita Wu, the assistant to the president of a major sports agency, on the
HBO series
Arliss, receiving a nomination for an
NAACP Image Award for Best Supporting Actress in a Comedy Series and a Cable Ace award for Best Actress in a Comedy for her work. She also made several guest appearances on the series
Popular (1999) playing a humanities teacher and guest starred in the
television series Kung Fu: The Legend Continues,
Judging Amy,
Six Feet Under and
Odd Job Jack. In theatre, Oh has also starred in the world premieres of
Jessica Hagedorn's
Dogeaters at the
La Jolla Playhouse and
Diana Son's
Stop Kiss at
Joseph Papp's Public Theater in New York City. In 2003, she was cast in a supporting role opposite
Diane Lane in
Under the Tuscan Sun, followed by a supporting role in
Alexander Payne's drama
Sideways (2004). She considers
Sideways and
The Diary of Evelyn Lau to be the two best films she has made. In 2009, Oh performed in
The People Speak, a documentary feature film that uses dramatic and musical performances of the letters, diaries, and speeches of everyday Americans, based on historian
Howard Zinn's ''
A People's History of the United States. During the off-season hiatus from filming Grey's Anatomy
in 2010, Oh took the part of Sarah Chen in the British crime drama, Thorne''. She undertook intensive
dialect coaching in order to play her British character. On June 28, 2011, it was announced that Oh would receive a star on
Canada's Walk of Fame; she was inducted on October 1 at
Elgin Theatre in Toronto. In 2013, Oh formally announced that she would be leaving ''Grey's Anatomy'' at the end of the tenth season. Oh exited the series with the season 10 finale.
2014–present: Film roles and Killing Eve In October 2014, Oh announced that she would be teaming up with Canadian director
Ann Marie Fleming to collaborate on an animated feature film titled
Window Horses. She also appeared in a supporting role in the comedy film
Tammy (2014), playing the wife of
Kathy Bates' character. In 2015, she starred on the Refinery29 comedy
web series Shitty Boyfriends. Oh began filming the comedy film,
Catfight (2016), in New York City in December 2015. In 2017, Oh starred as Abby Tanaka in the third season of the anthology drama series
American Crime. Beginning in April 2018, Oh began a leading role in the
BBC America and
BBC Three spy thriller series
Killing Eve, playing
British intelligence agent
Eve Polastri whose quarry is psychopathic assassin
Villanelle (played by
Jodie Comer), with the two women developing a mutual fascination. and a third was announced less than a day after the second premiered in the United States.
Killing Eve was also renewed for a fourth season shortly after. Oh has garnered critical acclaim for her performance on the series, with Jenna Scherer describing her in
Rolling Stone as "a compulsively watchable actor – expressive and complex, blending wry wit and deep pathos." When
Vulture declared Oh the best actress currently on television, critic
Matt Zoller Seitz wrote: "It's a tour de force performance, yet so self-effacing and invisible in its effects that you come away thinking that you've seen a crackling yarn with compelling characters rather than a cultural landmark. This is a magic trick of a high order." In 2018, Oh became the first actress of Asian descent to be nominated for the
Primetime Emmy Award for Outstanding Lead Actress in a Drama Series, for that role. She won the
Golden Globe Award for Best Actress – Television Series Drama, becoming the first woman of Asian descent to win two Golden Globe Awards. From 2018 to 2020, Oh voiced the role of Castaspella in the animated superhero series
She-Ra and the Princesses of Power. In 2019, she co-hosted the
76th Golden Globe Awards, alongside
Andy Samberg. Oh became the first woman of Asian descent to host the awards show. In March 2019, she became the first Asian-Canadian woman to host
Saturday Night Live, and only the third actress of Asian descent, after
Lucy Liu in 2000 and
Awkwafina in 2018. In 2021, Oh voiced Virana, the chieftess of the Fang tribe in the
Disney animated film
Raya and the Last Dragon. Oh voices the role of
Debbie Grayson in the animated superhero drama series
Invincible. The series, based on the
comic book series of the same name, premiered on
Amazon Prime Video in 2021. In 2021, Oh served as executive producer and had the lead role in the Netflix comedy-drama series
The Chair. In 2022, Oh voiced the role of Ming Lee, the strict and overprotective mother of the main character in the
Pixar animated film
Turning Red. She joined
Lynne Ramsay's adaptation of
Margaret Atwood's short story collection
Stone Mattress. In 2023, Oh played the role of Jenny Yum, a brash, outgoing, and impulsive older sister of the main character in the
20th Century Studios comedy film
Quiz Lady. In 2025, she appeared in
Good Fortune, directed by Aziz Ansari. ==Personal life==