Sanrio is home to some of the cutest characters ... Just one year after his debut, a whole anime series featuring Keroppi and a cast of cute frog friends called Keroppi and Friends premiered.

so here's a roll call of the best bird friends Sanrio has to offer. Hello Kitty has starred in several animated series over the years, including the 2006 anime Hello Kitty: Ringo no Mori.