Chunk is a fictional character from the animated film series Toy Story, developed by Pixar Animation Studios and released by Walt Disney Pictures. He is a rock-like, muscular action figure with a rough and tough exterior. Chunk is one of the new toys introduced in Toy Story 3, residing at Sunnyside Daycare. He has the ability to transform his facial expression from friendly to fierce by rolling his eyes and shifting his mouth. Although initially a henchman for Lotso, the film's antagonist, Chunk later becomes an ally to the main characters Woody and Buzz Lightyear, as they seek to escape the daycare center.