Sean Bates

Warning Spoilers through Straits of Hell. Sean Bates, also known as Sean O'Casey, was aboard the vessel carrying Rebecca Anne McDonald when it struck a leviathan. He was instrumental in saving Rebecca's life. They eventually ended up on Talaud Island‏ with the S-19. Everyone on the island was rescued by Matthew Reddy and Walker. O'Casey admitted to Reddy that he was in conflict with the Empire of New Britain Isles‏.

In, O'Casey remained aboard Donaghey while Reddy, Rebecca and others visited the Empire frigate Achilles.