Wild

From Smurfology

Wild Smurf (or just Wild) is one of the main characters of the Smurfs cartoon show that has appeared from Season 7 to the end. He was a Smurf who, at the time his brother Smurfs were "born", was accidentally lost in the forest and spent his years being raised by a family of squirrels until his first official appearance as an adult Smurf in the four-part episode "Smurf On The Wild Side". He is identified by a leaf-woven Smurf hat and a loincloth that he wears. He tends to speak mostly in squirrel talk and has rather feral habits, such as scratching his ears like a dog.

His character was voiced by Frank Welker.