The original idea came about from two ex-firemen from London, England – Dave Gingell and David Jones after purchasing the cartoon drawn by artist Anthony Miller. They approached Mike Young, creator of SuperTed, in Barry, Wales, and asked them to further develop their concept. The idea was then brought to S4C's Director of Animation, Chris Grace, who saw potential in the idea and commissioned the series. Grace had previously commissioned SuperTed, which had achieved success across the United Kingdom and worldwide. The characters and storylines were created by Rob Lee, an illustrator from Cardiff, and the program was produced using stop motion. It could take up to four days to produce one minute of this form of puppet animation. Fireman Sam has to this day been translated into over 25 different languages including Mandarin.