

Season 2 • Episode 22
LatestCentres on the adventures of a group of anthropomorphic numbers. They go about their everyday lives inside their sofa until a call comes in from a real-life child Agent, who reports a problem that needs solving. One or two of the Numberjacks fly out on location to investigate. The Numberjacks have to work out how to put things right, and thwart the dastardly intentions of the Meanies.
Practical Effects
Gloriously janky CGI that ages like milk
Writing
Meanies with names like 'The Shape Japer'
Creator
Chris Ellis
Trivia, insights & behind the scenes
Numberjacks aired on CBeebies and became quintessential British childhood viewing, though it never cracked America—possibly because 'math' without the 's' confused them.
The Numberjacks were voiced by adults using pitch-shifting, not child actors—explaining why Three sounds like a gremlin on helium.