Monsieur Mallah is a hyper-intelligent African gorilla capable of human speech who develops many of the Doomsday Devices used by the Brotherhood. Mallah is also adept at using weapons, such as grenades and a laser-firing minigun, in conjunction with his bestial strength. Mallah is extremely loyal to his master and is his trusted confidant. It is he who suggests that they escape when the Titans begin to regroup against them, but their retreat is thwarted by Robin and Beast Boy; he is beaten by Beast Boy (who himself has morphed into a gorilla to fight him), and is the second-to-last Brotherhood member to be subjected to the freezing machine in "Titans Together".