1. The opposite of Squidward, who is God.
2. The Antichrist.
3. Squidward's highschool nemesis.
Squilliam has a mansion, and Squidward does not. How sad.
...you are hearing this from an atheist.
Squidward is God.
Do not deny it. You know the truth.
Squidward is God, and Squilliam (God's highschool nemesis/powner) is the Antichrist.