The lobsters are Dr. Blowhole's henchmen. They were seen in Dr. Blowhole's Revenge. They play all roles in Blowhole's secret operation. As there are no ranks for these crustaceans, they are all minor antagonists that are following one main antagonist. Sometimes they are able to put a punch on the penguins, but the hard armor is weak to hit with. The lobsters are loyal to Dr. Blowhole, but they are also slightly afraid of him.
They appear again in The Return of the Revenge of Dr. Blowhole and play a role in Blowhole's operation.
They also appear in The Penguin Who Loved Me, playing a quite major role, trying to get Blowhole's memories back. By the end, almost all of the lobsters lost their memories and got blasted by the beam cannon for "Operation: Bad Tidings", and launched into the sea. Their ultimate fate is unknown.