El Nombre is an animated masked Mexican gerbil originally from a series of educational television shows called Numbertime - a BBC schools programme about mathematics. His first appearance was in 1993 and he became such a success that his interstitial part was soon extended to a five minute short (also named El Nombre), produced by Ealing Animations. In 2000, an entertainment series was commissioned for CBBC and a second series went out in 2003.
Read more about El Nombre: Setting, Episode Guide