Prince Gasket was the first-built son of King Mondo and Queen Machina, and also the older brother of Prince Sprocket and Princess Circuitrina. He fell in love with Archerina, daughter of Mondo's potential ally, King Aradon. Knowing their marriage would never be (entirely) approved of by Archerina's father, the two of them eloped. He is the father of Prince Gear. When news of Mondo's death reached him, Gasket returned to take care of his mother and siblings, depose of the interloper Louie Kaboom and take his rightful place as the Machine King (with his wife as the Machine Queen).