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Joe is the older brother of David. Joe works as a delivery man for Ocean Cafe, and is usually late. He likes boats and recently bought a new one. He managed to convince David to take a ride with him in it. While boating, Joe noticed something weird swimming under them and started chasing it. Nixie was the one who Joe spotted and he chased her to the canal where Nixie got caught in the net. Joe was about to jump into the water to take a closer look, when Zac and Lyla used their powers to mess with his boat. Sirena managed to get Nixie free from the net and they swam away talking in dolphin, so Joe would think it was a dolphin he chased. Then the water police arrived and confiscated his new boat.
He also works in the Ocean Cafe's warehouse. Once he almost found Zac there when he was secretly practicing with the trident.