He is a young small gray/white storm cloud. When he gets upset he turns into a giant storm, tornado, and wind storm.
Role in episode
He starts off as a young small storm cloud lost from his parents and gets taken care of by SpongeBob. SpongeBob adopts him as a pet. He then gets kidnapped by Gale Doppler, but is then saved by SpongeBob. He gets reunited with his parents and gives SpongeBob his son Drizzle Jr..