Gorgons

Gorgons are mythical creatures that are part human and part snake. They are mostly female and have snakes for head hair. Legend says that if you stare into the eyes of a Gorgon, you will turn into stone. The most famous Gorgon to appear is Medusa, who is featured in the theatrical adaptations of Clash Of The Titans.

Mainstream Smurfs Media
In mainstream Smurfs media, Hermes the son of the Zeus and Hera deals with the Gorgon sisters on the island where he and the Smurfs find the Golden Fleece in the cartoon show episode "The Smurfs Odyssey".