Seth Parsons is the father of Tony Parsons and his other siblings. He lives in The Swamp with his wife Lily Parsons and his kids. His family is the last remaining swamp family.
Seth is a calm man in general but he will do anything to protect the Swamp and his family.
- Him and Tony have the same voice actor, Terry Klassen.
- He is a talented sculptor, being able to create wooden duck sculptures as seen in The Bad Seed.