What older actress/actor was the most egregious portrayal of a middle/high schooler?

We all know older actors are generally used to play roles of students. What is the worst example you can think of that uses this? I used to laugh seeing high schoolers look like 40 year old's. Definitely caused some self esteem issues for me in high school lol. I think the average age for the cast in 'Spider-Man' must have been like 27. via /r/movies https://ift.tt/ERzafCg