Cuthbert Cringeworthy is the brightest evil pupil in Bash Street School who works with the villains, Slasher Brown, The Inspector, Clint Katzenberger, Vilhemina Slop Bucket, Fatty Fudge and Reg Trademark, and hates giving wrong answers. He always wears a school uniform with a schoolboy's cap. Cuthbert is also Teacher's Pet, because he is well-behaved unlike the other kids. However, he sometimes gets into trouble with Teacher. In one story, he gets sent out of the classroom because Teacher thought he was singing in class, when it was actually a howling dog he refused to let onto school grounds. Teacher never hears a word when he corrects Cuthbert's homework.