Actor Finn Jones was originally cast in the lead role, but was replaced by actor Tom Payne due to creative differences after the pilot's first table read.
Tom Payne is only 12 years younger than his mom (Bellamy Young) and 13 years than his dad (Michael Sheen)
We learn in this opening episode that Malcolm's night terrors are so bad that he uses a tooth guard and arm restraints in bed at night so he doesn't harm himself whilst sleeping.
The pilot episode attracted the biggest audience numbers with 4.05 million viewers.
Tom Payne went straight from being a member of the ensemble cast for The Walking Dead (2010) to this police procedural series.