Doctor-Doctor

Doctor Doctor is a character who appears in the first episode of 'Tale of Woah' and has since made countless crossovers to other universes. He is a mad doctor with long arms. Doctor Doctor owns a cardboard box realm where he performs his experiments, mostly consisting of stitching body parts together.

He drags people through cardboard boxes and isn't actually a doctor. His PhD is drawn in crayon.

Doctor Doctor is known in the series for reviving fallen characters, both good and bad. Mostly bad.