Zetton Seijin is a fictional alien character from the Ultraman series, known as a member of the Zetton species or as a Zetton alien. In the franchise, this character typically appears as a powerful monster or alien antagonist associated with advanced technology and overwhelming combat strength. Zetton Seijin often serves as an enemy force confronting Ultraman and other heroes, helping establish the high stakes and danger in the series. The character is notable for its imposing presence and its connection to the iconic Zetton name.