Answer
Lotso, voiced by Ned Beatty, is the main antagonist in "Toy Story 3." He is a large, pink teddy bear who initially appears friendly but is later revealed to be a ruthless dictator who rules Sunnyside Daycare with an iron fist. Lotso's manipulative nature and desire for power make him a formidable villain, as he exploits the toys' vulnerabilities to maintain his control over the daycare.