Jack and Jill

Jack and Jill are a married couple, a pair of murderous outlaws, and they are the secondary antagonists in the film Puss in Boots. They were advertised as the main antagonists, however they are later revealed to be a misinformation campaign to reveal the movie's real main villain.

They are voiced by Billy Bob Thornton and Amy Sedaris.

Role in the Film
In Puss in Boots, Jack and Jill are in the possession of the magic beans from the Jack and the Beanstalk story. Eventually,  Puss, Kitty Softpaws and Humpty Dumpty track them down in their piglet-filled cart and, after battling them, manage to steal to get into the giant's keep.

However, it is revealed later that Jack and Jill were in cahoots with Humpty and Kitty to take the Golden Goose and trick Puss into being imprisoned in his home town. Jack and Jill were seemingly just Humpty's minions. Later on, the Great Terror arrives to retrieve the Golden Goose, its baby. It is revealed that Jack and Jill were planning to betray Humpty all along, wanting more than just golden eggs but the actual goose. They try to steal the Goose when Humpty had a change of heart and tried to help Puss lure the Great Terror away from San Ricardo, holding their gun to Humpty's head, only for Kitty Softpaws to fight them off and then be stomped on by the Terror.

During the credits, Jack and Jill are seen in full body casts.

Trivia

 * Throughout the film, Jack tries convincing Jill that they should have a family but she assumes that they should be taking care of their piglets.
 * It is probable that they never intended to stay on Humpty's side from the start and would eventually kill him before taking the goose for themselves.