Know-it-all Nick

Nicholas Payne, better known as Know-it-all Nick, is Bertie's rival, who he calls his arch-enemy.

Personality
Nick is very knowledgeable, hence the nickname, but often uses that knowledge to pass himself off as smarter than other people and when he doesn't know something, he'll just make something up. He is quite smug, arrogant and impolite, often teasing Bertie. He is also a bit of a prankster, his most common pranking victim being Bertie.

Trivia

 * Bertie sometimes calls him Nickerless.
 * He once made Miss Boot a birthday card.
 * He learned how to fish when he was five.
 * He is the only boy Bertie knows who can play football without getting his clothes dirty.
 * He secretly wishes to be a superhero named Tidyman who "saves the world" from dirty laundry.
 * According to his mother, he has sensitive skin.