Avenger Penguins is an animated series produced by Cosgrove Hall Films and Thames Television in 1993, filmed by Alfonso Productions, a Spanish-based animation studio also responsible for bringing Cosgrove Hall's show Fantomcat to life. It aired largely on Children's ITV and was originally to be called Hell's Penguins, although was renamed in concern to how the religious audience in the US would respond. It has the distinction of being the last Cosgrove Hall cartoon to be animated using hand painted animation cels, as all 2D animated series from the studio thereafter would use computers for the ink and paint process; with the animation drawings scanned and then digitally coloured.