Twitch

Twitch is one of the toys from Sunnyside Daycare that appears in Toy Story 3. He is an "insectaloid warrior" action figure with a bug's head. He has red eyes with ferocious chomping mandibles, wings, and two muscular arms. He is voiced by John Cygan.

He is one of the strongest toys serving Lotso, and helps apprehend Andy's toys, and keeps a search light working in the playground. Twitch stands over five inches tall with more than 15 points of articulation. He also carries a signature magical battle staff and has removable chest armor. Twitch was also one of Lotso's henchmen. He has shown to be laidback but rough. As with his cohorts, Twitch is convinced of Lotso's deception by Woody and Ken, and is shocked when Lotso mistreats Big Baby and pushes him aside abusively.

In the end credits, he is shown happily taking a turn with Chunk as they endure a rough playtime with the abusive toddlers in the Caterpillar Room.

Toy Description
From Official Website:

"Meet Twitch the insectaloid warrior, where MAN + INSECT = AWESOME! This sturdy action figure stands over five inches tall, with more than 15 points of articulation, including ferocious chomping mandibles. Use his powerful wings and impenetrable exoskeleton to evade capture! Twitch is meticulously detailed and includes his signature magical battle staff and removable chest armor. For children ages 4 and up. Other insectaloid figures sold separately."

Trivia

 * Twitch appears to be based on the Masters of the Universe (He-Man) toyline, and other similar action-figures, from the 1980s.
 * Twitch's official description has him standing over five inches tall. In the film, he is clearly seen to be about Buzz's height, 12 inches.
 * Twitch was rumored to be voiced by Jeff Garlin, but he turned out to be voicing Buttercup instead.