This is amazing. British fans proved that they're still completely bonkers, with this parade of canine cosplay. Including a Superman dog, a Darth Vader dog... and a totally adorable dog cosplaying as K-9, the robot dog from Doctor Who. (Awwwwww.)

These photos come via Jordan Mansfield at Getty Images, who writes: "Enthusiasts gathered at the Picture House in Stratford to parade their dogs dressed up as famous Sci-Fi characters as part a London-wide event called Sci-Fi London."

Who's a good Darth then? Who's a good Darth?

Also, is that canine Power Girl, complete with fake boob window, at the bottom? And if so... why?