Dewey was a Dog seen in M3GAN, he was the pet of Celia, and he attacked Cady and M3GAN. In retaliation for biting Cady, M3GAN kills the dog, then she kills Celia a day later.
Biography[]
Dewey was always seen to be hostile towards both Cady and M3GAN, showing threatening and attacking behavior towards them. One day, when one of Cady's arrows lands is Celia's yard, M3GAN goes to retrieve it, only to be viciously attacked by Dewey, who also bites Cady on the arm. Later that night, M3GAN lures him to the hole in the fence imitating Celia's voice and using a treat, only to be abducted by M3GAN and killed offscreen.
M3GAN would imitate Dewey's barking to lure Celia into her shed the following day, where she also kills her.