Because you like Tina Cohen-Chang in Glee

The irrepressible Lucy Ricardo has never met a challenge she couldn't scheme her way into or out of. See them in I Love Lucy.

Catherine Linton was once spontaneous and rowdy but ever since marrying the wealthy Edgar, she has morphed into a boiling pot of emotional outbursts. See them in Wuthering Heights.

R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.

Despite this being Robin Buckley's first rodeo with the strange things that go down in Hawkins, she is quick to adapt and proves herself to be a loyal friend. See them in Stranger Things.

Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.

Although Theon Greyjoy is treated well, he's still essentially a hostage. And that isn't so easy for him to forgive. See them in Game of Thrones.

Jack's big imagination is never limited by his incredibly cramped surroundings. See them in Room.

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.

The biggest lesson from this inspiring teacher? Carpe diem. See them in Dead Poets Society.