Ludwig von Drake

Ludwig von Drake (voiced by ????) is. , . Ludwig, ????, ????, Doc Emmett Brown, Ford Pines and Professor Quack invents the Magnetic Guns,, Alicorn Wagon, , , Lenny, (a talking Mystery Shack golf cart who have same personality as Gadgetmobile (from Inspector Gadget's Last Case) right after a freak accident when Dipper and Mabel ), , , ???? and ????.