Carol Vorderman MBE is one of Britain's best-loved TV hosts and is renowned for her mathematical skills. She has hosted numerous TV shows on science and technology from Tomorrow's World to How 2 and was co-host of Channel' 4's Countdown for 26 years. A Cambridge University engineering graduate, she has a passion for communication science and technology and has a keen interest in coding.

Craig Steele is a specialist in Computing Science education. He is a Project Manager for CoderDojo Scotland, which runs free coding clubs for young people. Craig has previously worked for the Raspberry Pi Foundation, Glasgow Science Centre, and the BBC micro:bit project. Craig's first computer was a ZX Spectrum.