GLaDOS

Wheatley was a charming edition to Portal 2, actually having a companion to guide you through aperture science. When he betrays you after having access to the mainframe, it doesn't take a genius to predict he would, Absolute power corrupts absolutely and based on how you failed to catch him when he asked you to, it would make sense for him to take his anger out on you, especially Glados for calling him a robot DESIGNED to be an absolute idiot. Meanwhile, Glados from the first game was written to have NO redeeming qualities. Her reward for completing the tests is throwing you into a fire pit to die. And her backstory is revealed that she POISONED the entire aperture staff with neurotoxin. It was a bit of a bold decision to give her a backstory in the 2nd game, to try to give her sympathetic qualities. I just wish it didn't end with Wheatley being banished to space like that, nobody deserves that kind of fate. I wish there was a way to save him. :(

This is her now, feel old yet?

Here’s the list of villains.

Merasmus (TF2)

GLaDOS (Portal)

Plankton (SpongeBob SquarePants)

Widowmaker (Overwatch)

Sideshow Bob (The Simpsons)

Forrest Blackwell (Lego City Undercover)

Jan Levinson (The Office)

Heather (Total Drama)

Rodrick Heffley (Diary of a Wimpy Kid)

The Litch (Adventure Time)

Bill Cypher (You know where he’s from)

Any other suggestions?

As a person who is (for some reason) obsessed with Portal and it's lore, I can tell that the GLaDOS page could use some changes. However, I can't trust myself to make those changes without destroying something, so have a detailed explanation of what needs fixing.

First, you make it seem like she was feeling a burning hatred for Chell, even by the end of the second game. GLaDOS definitely hated her for at least the first half of Portal 2, but was SIGNIFICANTLY nicer by the end. She could have easily let Chell fly off into space with Wheatley, or killed her with neurotoxin while she was passed out. She could have set those turrets to shoot her on the way up to the surface. But she didn't. And, although not canon, GLaDOS explicitly states that she doesn't hate Chell anymore in the song You Wouldn't Know, from LEGO Dimension's credits. There is also an unused song in the second game's files, fan-named Don't Say Goodbye, that also disproves your theory of "she despises her."

Second, the GLaDOS transparent is backwards. Not much of a big detail, I'd just like to point that out.

Anyway, if you actually read all of that, thank you! This took forever to type out, especially on an on-screen keyboard. Please take this information into consideration! If there is anything I got wrong or missed, PLEASE let me know.