Because you like John Keating in Dead Poets Society

Unaware of the fact that he's a toy and made of plastic, Buzz Lightyear is a spaceman on a mission fully of snappy catch phrases. See them in Toy Story.

A fight every now and then makes Dante's life a little more interesting. See them in Devil May Cry.

With an A.I. as loyal and witty as Cortana, who needs humans? See them in Halo.

Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.

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.

Spike is punk meets vampire meets romantic poet. See them in Buffy the Vampire Slayer.

Everyone is just a chess piece, and Izaya Orihara is a master player. See them in Durarara!!.

Neytiri is an accomplished woman with no patience for stupidity. See them in Avatar.

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.

When Rin Matsuoka is not swimming, he mostly spends his time brooding or listening to angry Dubstep. See them in Free! Iwatobi Swim Club.

He's an eccentric pirate making it up as he goes along. He's Jack Sparrow, savvy? See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.