Monster...? No, I'm not a monster. I'm a--give me a moment, I think I have an introductory speech saved somewhere in here...

[Wheatley lightly taps the side of his head with a finger, as if trying to dislodge something inside. It's not everyday he has to introduce himself. Most times he even wouldn't have cared, but then again, other times nobody would have called him a monster]

"...a Personality Core created by Aperture Science to carry out different tasks in the installations and oversee"--let's forget about that. Who are you?

[There's a name engraved on his body, in plain sight. 'Wheatley'. Thank you for engraving his name so everyone sees it, person who made this body]