He has also written material for other children's television shows such as "Rainbow", "Fireman Sam", "Mike and Angelo", "Angelina Ballerina", "Dennis and Gnasher", "Little Princess" and "Bob the Builder". He was a head writer and script editor for "Shaun the Sheep" and the head writer for "Rastamouse". He also worked as an executive producer for "Rainbow". Lee also created the "T-Bag" franchise, featuring John Hasler as T-Shirt.