Burton's film introduces an entirely new character to the screen: the Bloodhound. The role is handled by veteran British actor Timothy Spall, who worked with Burton on "Sweeney Todd." Spall may be best known as Peter Pettigrew in the "Harry Potter" films and the malicious toady Nathaniel in "Enchanted." "He's exciting because he's always doing something different," Burton says. "He's always working and doing some interesting project." The bloodhounds presence may be "a reaction against the Cheshire Cat," Burton says. "The film felt a bit feline- and rodent-heavy, perhaps, and I think the Bloodhound adds a certain little gravity to it. When you see all of the characters, the animal ones, together, he added a little balance to it."