Clabber is the farmer who lost the competition after Luke Triton solved the puzzle DB050 - Misinformootion. He is a vicious rival of Oscar. He often struggles to work out which livestock is his, hence why the argument started. He is from Dropstone.
Clabber wears a brown shirt, red trousers and a white hat.
Clabber gives the following puzzles in Professor Layton and the Diabolical Box:
"Clabber is a dairy farmer and breeder of fine cattle. Considering how proud he is of his own livestock, he has a surprisingly hard time telling his cows apart from those of other farmers."