El Nombre is an anthropomorphic Mexican gerbil character, originally from a series of educational sketches on Numbertime, the BBC schools programme about mathematics. He was also the only character to appear in all Numbertime episodes. His voice was provided by Steve Steen, while the other characters' voices were provided by Sophie Aldred, Kate Robbins, and (from 1999) former Blue Peter host Janet Ellis. For the ninth (and final) series of Numbertime in 2001, Michael Fenton-Stevens also provided voices of certain other characters in the El Nombre sketches.