Scaroth (The Daft Dimension 489)

In a parallel universe, Mr Scaroth of the Jagoroth was a crook who was unmasked by that universe's version of the Doctor and his friends. He lamented that he would have gotten away with whatever he was doing "if it weren't for [those] pesky time travellers." (NOTVALID: The Daft Dimension)

Behind the scenes
Mr Scaroth is a parody of the villains typically found within Scooby-Doo.