How Old Is the Cast of 13 Reasons Why? An Age Investigation

After what seemed like an eternity of waiting, 13 Reasons Why is returning for its fourth and final season on June 5. The Netflix's adaptation of the Jay Asher novel has captured fans' attention, thanks in large part to the cast. While the main characters (save for the parents) are all in high school, the actors are all slightly older than their onscreen counterparts. I wanted to know just how much older, so I did some digging. Here's how the cast compares to their characters in age.