Big Baby

Big Baby is one of the Sunnyside Daycare toys, who appears in Toy Story 3. He is a very big doll who is Lotso's "sidekick" or "muscleman", helping him with his bad deeds.

He doesn't talk (only comminicates in baby sounds).

Big Baby, along with Lotso, was left at the countryside. He ends up redeeming himself by throwing Lotso in the dumpster after realizing the lies he told him about his previous owner, Daisy.

Toy Description
From Official Website:

''Your little one will love this baby doll with his soft, cuddly fabric body and vinyl arms, legs, and face. With dazzling blue eyes that open and close, this realistic baby encourages nurturing play. Eighteen inches tall, he comes dressed in an adorable yellow onesie with matching bonnet, and has his own magical bottle of milk that disappears while he drinks! A perfect first doll for your special child. Machine washable on gentle cycle. Flame retardant.''

Trivia

 * The scene in which Big Baby throws Lotso into the dumpster is a direct reference to Return of the Jedi, in which Darth Vader throws Palpatine into a pit in the throne room.
 * The baby's voice was provided by a baby named Woody. Lee Unkrich figured this out after he signed Woody for the role.
 * He has a broken eye, a possible reference to Babyface.