This grumpy lonesome Australian shark used to be one of the best surfers in the world until his worst nightmare lurked over his career: Retirement. Now Gill can only reminisce about the golden days, as he doesn't have much to do anymore. Over the years he's grown a cold and standoffish demeanor, but he's still got a lot of compassion for the things he loves, and is always trying to find ways to rekindle them. Gill isn't a bad guy or anything, I guess decades away from the ocean is bound to make a shark a little irritable.