Dee and Dum are twin gatekeepers of the Hatter territory. Their nickname to those not aligned with the Hatters is the Bloody Twins. They also have the ability to turn into adults.

The twins are childishly cruel, yet retain a sort of innocence in their cruelty. This innocence does not extend to their actions towards Alice, for when they grow especially attached to her, they do not behave as children. They like to skip work and kill for the fun of it, saying their are playing with whomever had the misfortune of being their victim. Both twins prefer axes to guns, "because axes are more fun." They look up to people who are mature or who benefit them, but everyone else (except Alice) will be subject to their insults and/or teasing. Because they are young, they are spontaneous and live more in the moment than most other people.

Dumms voice should be a mid range.