11 Stars Who Played High Schoolers Well Into Their 20s (and 30s) | Photos

When it comes to Hollywood casting, it seems like anything goes — especially when it involves high school. For decades, actors in their 20s (and even their 30s) have been tapped to play teens. And we all say, “Sure, why not?!”

Below, take a look at 10 actors who were way too old for their on-screen teenage roles, from Stockard Channing in “Grease” to Ben Platt in “Dear Evan Hansen.”

Stockard Channing, 33, “Grease” (1978)

When Channing played Rizzo in “Grease,” she was the oldest high schooler on set at age 33. This fun fact is #2 to the late Jeff Conaway (Kenickie) giving real hickeys to Channing off-set.