Character: Megan Jones
Character’s age: High school student, 15-16ish.
Character: Rhonda Coley
Character’s age: She went to the same school as Tia and Tamera.
Character’s age: One of the students who attended the school where Steve Harvey’s character taught.
Character: Kendra Young
Character’s age: She became a Slayer after Buffy died briefly in Season 1, so she was probably around the same age as Buffy (16 or 17).
Character: Shirley and another character named Tracy
Character’s age: Both characters were high school students who went to school with Mo and Marcus.
Character: Nikki Green
Character’s age: She plays a student director who enters the same student film festival as Dawson.
Character’s age: The ex-girlfriend of Sean Patrick Thomas’ character, who attends the same Chicago high school as Julia Stiles’ character.
Character’s age: Technically, in Secret Life Bianca Lawson plays a 23-year-old who is only dating a high school student, who she then dumps for being too young.
Character: Emily Bennett
Character’s age: It’s unclear exactly how old Emily is, but she’s part of a family line of young women who are witches, so it’s safe to say she’s teenage-ish.
Character’s age: She attends Westfield High, the high school where Evan Peters’ character goes on a shooting rampage.
Character: Maya St. Germain
Character’s age: Maya dies in Pretty Little Liars at the age of 18.
She plays Ms. Morell.
Character’s age: A French teacher and guidance counselor at Beacon Hills High School. Hooray!
(Bianca Lawson’s inability to age was pointed out most expertly here.)