How old are the Stranger Things characters in season 3?

The kids of Stranger Things are growing up—and so are the actors who play them, because, well, that’s how the linear progression of time works. But because time marches on at a steady pace IRL no matter how much time passes in the fictional world of Hawkins, Indiana (or how long production is delayed for things like global pandemics), you may have started to really notice that the “kids” of Stranger Things are, for the most part, definitely no longer “kids” in real life.

For a little context, Stranger Things premiered in 2016 and the events of the first season begin in November 1983. By season 4 (the first half of which just dropped on Netflix for your bingeing pleasure), the show’s timeline has progressed to early 1986. So while a little more than two years have passed within the world of the show, six years have passed in the real world, which helps explain why the cast members are starting to look so noticeably older than their onscreen alter egos.

Here’s a look at just how big the age gaps between the Stranger Thing actors and the characters they play are.

Millie Bobby Brown (Eleven)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 14 or 15

Age IRL: 18

Millie was born on February 19, 2004, meaning she’s officially a legal adult in the real world. Eleven, on the other hand, was born in 1971 (according to the Stranger Things Wiki), making the character 14 or 15 during the events of season 4. FWIW, though, Eleven and Millie were both 12 in season 1.

Finn Wolfhard (Mike Wheeler)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 15

Age IRL: 19

Mike’s age is a little more specific, thanks to the graphic novel Stranger Things and Dungeons & Dragons, which gives his exact birthday as April 7, 1971. Finn, meanwhile, was born on December 23, 2002, making him a full four years older than his character.

Gaten Matarazzo (Dustin Henderson)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 14 or 15

Age IRL: 19

Like most of the kid characters, Dustin’s birthday is in 1971 (his is in May, apparently), meaning the character is 14 or 15 in the current season. IRL, Gaten has a September birthday, making him a few months older than Finn.

Caleb McLaughlin (Lucas Sinclair)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 14 or 15

Age IRL: 20

Caleb’s age gap with his character is about the same as the rest of the D&D crew, but if we had to award one of these guys a Most Visibly Grown title, it would be him.

Noah Schnapp (Will Byers)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 15 (his birthday is in March 1971)

Age IRL: 17

Noah is the bb of the kid cast IRL—and one of the few Stranger Things kids who is actually still a minor (he’ll turn 18 on October 3).

Sadie Sink (Max Mayfield)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 15

Age IRL: 20

Sadie turned 20 in April and made sure everyone knew she was a damn adult last fall when she turned in a wise-beyond-her-years performance in Taylor Swift’s All Too Well short film.

Natalia Dyer (Nancy Wheeler)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 18 or 19

Age IRL: 27

Nancy was born in 1967, making her 18 or 19 in season 4. In real life, Natalia is officially in her late 20s (but honestly still looks pretty baby-faced).

Charlie Heaton (Jonathan Byers)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 18 or 19

Age IRL: 28

Jonathan was born the same year as Nancy, but Charlie is about a year older than Natalia in real life. Unlike her, he is not so eternally baby-faced.

Joe Keery (Steve Harrington)

Netflix

Age on the show: 19 or 20

Age IRL: 30 (!!!)

The Stranger Things “kid” who wins the Furthest From Being an Actual Child award is Joe Keery, who turned 30 in April and is currently playing Steve, who is a full decade younger than he is IRL. At least Steve is supposed to be a little older than the other teen characters?

Maya Hawke (Robin Buckley)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 17 or 18

Age IRL: 23

Maya is actually significantly closer to her character’s age than most of the older Hawkins teens, so at least there’s that.

Priah Ferguson (Erica Sinclair)

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Age on the show: 11

Age IRL: 15

Priah and the Stranger Things costume and makeup teams deserve all the awards for making the obvious teenager above even remotely pass for an elementary school student.

Kayleigh Roberts Kayleigh Roberts is the weekend editor at Cosmo, focused on celebrity news and royals.

How old are the stranger things lids in season 3?

How old was Will Byers in season 3?

How old is Nancy is season 3 of Stranger Things?

How old are Stranger Things character season 4?