How Old Are the Cast Members of Stranger Things?

Millie Bobby Brown as Eleven: 18 Years Old

Image Source: Everett Collection

Brown, who is 18, is three years older than her 15-year-old character, Eleven.

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Finn Wolfhard as Mike Wheeler: 19 Years Old

Image Source: Everett Collection

Nineteen-year-old Wolfhard plays 15-year-old Mike Wheeler in "Stranger Things."

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Caleb McLaughlin as Lucas Sinclair: 20 Years Old

Image Source: Everett Collection

At 20, McLaughlin still perfectly captures his 15-year-old character, Lucas.

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Gaten Matarazzo as Dustin Henderson: 19 Years Old

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While Matarazzo is 19, Dustin is 15 years old in season four.

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Noah Schnapp as Will Byers: 17 Years Old

Image Source: Everett Collection

Seventeen-year-old Schnapp plays 15-year-old Will in "Stranger Things."

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Charlie Heaton as Jonathan Byers: 28 Years Old

Image Source: Everett Collection

Heaton, who is 28, plays 18-year-old Jonathan Byers in "Stranger Things" season four.

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Natalia Dyer as Nancy Wheeler: 27 Years Old

Image Source: Everett Collection

At 27, Dyer plays 18-year-old Nancy Wheeler.

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Joe Keery as Steve Harrington: 30 Years Old

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Keery and his character have the biggest age difference. At 30, he's 11 years older than his 19-year-old "Stranger Things" character, who just graduated from high school.

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Sadie Sink as Max Mayfield: 20 Years Old

Image Source: Everett Collection

At 20, Sink still manages to capture Max perfectly, despite their five-year age difference (Max is 15).

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Maya Hawke as Robin Buckley: 23 Years Old

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While Hawke is 23 in real life, her character is 18 years old in "Stranger Things" season four.

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Priah Ferguson as Erica Sinclair: 15 Years Old

Image Source: Everett Collection

Ferguson is 15, but her character — Lucas's little sister — is 11 in "Stranger Things" season four.

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