Because you like Gilderoy Lockhart in Harry Potter Series

Her unhappy childhood has left her unsure of the existence of happy endings. Mary Jane Watson hides her pain beneath a joke and a smile. See them in Marvel Cinematic Universe.

Velma Dinkley is all about getting results, not taking credit. She is the unsung hero of Mystery Inc. See them in Scooby-Doo.

Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.

Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.

Amy Santiago likes following the rules a little too much. See them in Brooklyn Nine-Nine.

When he’s not working at the banana stand or awkwardly hitting on his cousin, George Michael tries his best to appease his father. See them in Arrested Development.

Randy Marsh is a geologist and Nobel Prize winner who is into binge drinking, starting riots, the Food Network, and P.F. Changs. See them in South Park.

Aldous Snow is a rock star who plays hard and parties harder. See them in Get Him to the Greek.

Derek Hale is not one to make allies easily. This moody werewolf is dark and brooding. See them in Teen Wolf.

Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.

Small in stature, Clara Oswald has a big appetite for adventure. See them in Doctor Who.

An inter-dimensional demon, Bill Cipher dreams of a more chaotic Gravity Falls. See them in Gravity Falls.