Halloween isn't just for you, human. Get furry friends in on the costume fun with characters from the worlds of sci-fi, fantasy, gaming, and comics. Your pup should be just as geeky as you — so while you're prepping to get your costume in order, transform your canine into Harry Paw-ter, Yod-awg, Dog-tor Who, and more!
— Additional reporting by Michele Bird
Source: Getty / Jordan Mansfield