|Dolly and Polly|
Dolly and Polly were bears of Haley's Circus.
Mad Hatter used Dolly and Polly to rob the Sharp Alert car locator company. Batman and Nightwing had some trouble stopping them, but pinned them down with the help of a fire hose, a forklift and rope.
They were brought back to Haley's Circus, where Miranda Kane brought them back to their pen. However, Batman eventually uncovered from security footage that the two bears were able to unlock their cages by inputting the code, causing him and Dick to realize that someone was manipulating them.