Antagonist
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Character Role Analysis
Sid
Sid is the Big Bad in Toy Story and the one person all toys fear. This kid tortures toys instead of playing with them: he's basically Hannibal Lecter in training.
You can read through Sid's Character Analysis and find out why we still have a bit of sympathy for the lil' dude, but even if his actions are understandable, he's still the guy that stands in the way of our heroes getting what they want in this story.