Raddle in Animal Crossing: New Horizons is a lazy frog villager making a comeback after a long break between Japan's GameCube title expansion, Dōbutsu no Mori e+, and the global DS title, New Leaf. It makes sense that Raddle would return in New Horizons as his appearance upon using his e-reader card in Dōbutsu no Mori e+ features him washing up on the shores of an island.
Raddle's visual appearance is based on the yellow-banded poison dart frog. He is a dark yellow—nearly black—frog with yellow spots on either side of his face, top of his eyes, hands, and feet. His eyes are simple white pupils.
Raddle Animal Crossing: New Horizons
When players first meet Raddle in New Horizons, he will be outfitted like a doctor--wearing a lab coat and surgical mask. This could be a reference to the toxicity of the frog species he's based on. His initial catchphrase will be "aaach—." In Dōbutsu no Mori e+, he wears a blue Aloha shirt.
In New Leaf, Raddle's house is modeled after a mad-science lab or surgical ward while in New Horizons, it's more of an anatomy classroom.
Raddle's birthday is June 6, making him a Gemini. His coffee preference is a Blend with lots of milk and three spoonfuls of sugar. His favorite song is Mr. K. K.