Which TV Show Has The Oldest "Teenagers"?

The average actor playing a teen role on TV is about 24 — but some shows have more age-appropriate casts than others.

Glee: 26.38

Pretty Little Liars: 24.36

Teen Wolf: 24.14

The Secret Life of the American Teenager: 23.2

The Carrie Diaries: 21.33

And the average of all the above: 24.25

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