In the first season, it seems like Bonnie is going to be firmly slated in the "best friend" category. But by the fourth season when she begins practicing dark magic, we are pleased to see that she is given a spectacular arc of her own. Previously dressed down in simple thermals and jeans with flawlessly straightened hair, Bonnie tends blend into the background. But by the fourth season, rocking her natural hair and a much darker aesthetic, it's nice to see she has a sassy personality of her own.

This scene is from The Vampire Diaries Season 4 finale. Feel free to watch again and again and again...

Elena is an entirely new person at the end of The Vampire Diaries Season 4. She has her sights set on Katherine.

Who out there does not adore Caroline Forbes? We see her having a drink in this scene from The Vampire Diaries Season 4.

Katherine is wandering in the woods for this Vampire Diaries scene. It's from the episode "The Walking Dead."

Katherine is pictured here on The Vampire Diaries episode "The Walking Dead." Elena wants her very much dead.

Bonnie is at the center of "The Walking Dead." Will she really lift the veil for Silas?

Silas may be evil. But is anything but handsome. Yech!

Bonnie has a concerned look on her face in this Vampire Diaries still, which is taken from the episode "Graduation."

It's graduation day in Mystic Falls! This is a photo from The Vampire Diaries season finale.

Elena still has highlights in her hair. But she looks to have her humanity back, doesn't she?

Look behind you, Elena! Those are ghosts! Run!