uzz, Woody, Jessie and the rest of the gang's jobs get exponentially harder when they go head-to-head with a new threat to playtime. Tom Hanks returns as the ever loyal cowboy Woody, Tim Allen reports for duty as Buzz Lightyear, and Joan Cusack saddles up again as the rootin? tootin? cowgirl Jessie. It was recently announced that Conan O?Brien will also be a part of the voice cast as the toilet training tech toy, Smarty Pants.