Craig Mammalton is an extremely tanned seal whom many seem to respect due to his tanness. He only appears in Sun Bleached in which he throws a huge party only for those as tanned as he is. SpongeBob and Patrick try to get in; Patrick is able to get tan but SpongeBob gets sun bleached due to Patrick's stupidity. They try many techniques to get tan. Finally SpongeBob covers himself in caramel. However at the party it hardened and fell off. However Craig was praised for it as it was an even deeper tan than his. They all tried to get sun bleached as well, however he and everyone except for SpongeBob and Patrick were seemingly killed while doing so.
Craig Mammalton shows much resemblance to Larry the Lobster including having a similar voice (but different voice actors). He is a seal that is extremely tan. His tan is said so deep that even his bones are tan. His skin is very leathery and wrinkled from tanning. Just like Larry he tends to be very popular, and cares much about his appearance. He wears a green bathing suit.
His bones are shown to be a rich golden carmel brown.