Grey’s Anatomy cast ages: How old was the cast then (and now)?

(EXCLUSIVE, Premium Rates Apply) "Grey?s Anatomy" cast, winner Outstanding Performance by an Ensemble in a Drama Series 12862_137 (Photo by KMazur/WireImage) *** Local Caption ***
(EXCLUSIVE, Premium Rates Apply) "Grey?s Anatomy" cast, winner Outstanding Performance by an Ensemble in a Drama Series 12862_137 (Photo by KMazur/WireImage) *** Local Caption *** /
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For nearly 20 years, Grey’s Anatomy has dominated television and catapulted a number of its stars into the stratosphere of stardom. Ellen Pompeo, Patrick Dempsey, Sandra Oh, Katherine Heigl, and more Grey’s alums became household names thanks to the series.

The medical drama first premiered on ABC in March 2005 as a midseason replacement with a nine-episode first season. Who would have thought back then that the series would be an awards and ratings sensation set to produce well over 400 episodes?

All the tears, heartbreak, and shocking plot twists have culminated in the series still being a fan-favorite into its landmark nineteenth season. But how old were the original main cast members in season 1 and how old are they today? Let’s get into the Grey’s Anatomy cast ages!

How old is Ellen Pompeo in Grey’s Anatomy?

Ellen Pompeo was born on Nov. 10, 1969, making the actress 53 years old as of June 2023. When Grey’s Anatomy began airing in March 2005, Pompeo was 35 years old. It’s been said Meredith’s birth year is 1978, which would make Meredith Grey about 27 years old at the start of the series. In 2023, Meredith is about 45 years old.

How old is Patrick Dempsey in Grey’s Anatomy?

Patrick Dempsey was born on Jan. 13, 1966, which makes the actor 57 years old in 2023. He’s just over three years older than his Grey’s wife Ellen Pompeo, and his character, Dr. Derek Shepherd (otherwise known as McDreamy), was also a bit older than Meredith. In 2005 when the series started, Dempsey was 39 years old, and when he left in 2015 after 11 seasons, he was 49 years old.

How old is Sandra Oh in Grey’s Anatomy?

Sandra Oh was born on July 21, 1971, and the Cristina Yang actress will turn 52 years old in 2023. A little over a year and a half older than her on-screen person Ellen Pompeo, Oh was 34 when Grey’s began airing in 2005, and she was 43 when she left the series in 2014 after 10 seasons.

How old is T.R. Knight in Grey’s Anatomy?

T.R. Knight was born on March 26, 1973, meaning the George O’Malley actor turned 50 in 2023. When the series began, Knight was 32 years old, making him one of the youngest members of the original cast. Knight left Grey’s Anatomy after the conclusion of season 5 in 2009, and the actor was 36 years old at the time of his departure.

How old is Justin Chambers in Grey’s Anatomy?

Justin Chambers was born on July 11, 1970, making the Alex Karev actor 52 years old as of June 2023. When the series premiered in 2005, Chambers was 35 years old. He was the fourth longest-lasting original cast member, leaving the series after season 16 in 2019 at the age of 49 years old.

How old is Katherine Heigl in Grey’s Anatomy?

Katherine Heigl was born on Nov. 24, 1978. The Emmy-winning Izzie Stevens actress and Firefly Lane star will turn 45 years old in 2023. She was the youngest member of the original Grey’s Anatomy cast, beginning the series at 27 years old. Heigl left the series in the middle of season 6 in January 2010 when the actress was 32 years old.

How old is James Pickens Jr. in Grey’s Anatomy?

James Pickens Jr. was born on Oct. 26, 1954, making the Richard Webber actor 68 years old as of June 2023. He remains a main cast member on Grey’s in season 19 and potentially beyond. When the series debuted in 2005, Pickens was 51 years old.

How old is Chandra Wilson in Grey’s Anatomy?

Chandra Wilson was born on Aug. 27, 1969, which makes the actress 53 years old in June 2023 and a couple months older than co-star Ellen Pompeo. Like Pickens, Wilson remains a main cast member on the series and was 35 when the series premiered in the mid-aughts.

How old is Kate Walsh in Grey’s Anatomy?

Kate Walsh was born on Oct. 13, 1967, making the Addison Montgomery actress 55 years old. She joined the series as a main character in its second season in 2005, when she was 38 years old, and Walsh left the series after the third season for the spinoff Private Practice. She returned to the series as Addison in season 18 and 19 in a recurring capacity.

How old is Sara Ramirez in Grey’s Anatomy?

Sara Ramirez was born on Aug. 31, 1975, making Callie Torres star 47 years old as of June 2023. They joined the cast of Grey’s as a main character in season 3, which premiered in September 2006, when they were 31. Ramirez left the series in 2016 after season 12, their 10th as a main cast member, at the age of 40.

How old is Eric Dane in Grey’s Anatomy?

Eric Dane was born on Nov. 9, 1972, which makes the Mark Sloan (also known as McSteamy) actor 50 years old in 2023. Like Sara Ramirez, Dane joined the series in season 3 at the age of 34, and he ultimately left the series two episodes into season 9 in 2012 when he was 40.

Watch Grey’s Anatomy on Netflix, Hulu, and ABC.

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