'Malcolm in the middle' trivia and fun facts

Although the family's surname was revealed as Wilkerson in the pilot episode, it was decided afterwards that the family should not have a last name. A running joke on set was that the family's last name was "Nolastname."

The show featured no laugh track, which was unusual for a live-action sitcom.

Aaron Paul auditioned for the role of Francis but lost. He would later be cast in 'Breaking Bad', which also starred Bryan Cranston.

The monster seen rising from the water in the opening credits is the monster from 'Clash of the Titans'.

Cloris Leachman (Grandma Ida) and Kenneth Mars (Otto Mannkusser) both use the same German accents they used in 'Young Frankenstein'.

On the show, Reese is the second oldest brother of Malcolm, but in real life, Justin Berfield (Reese) is less than three months younger than Frankie Muniz (Malcolm).