Apocalyptic Crewman is a pirate on The Walrus in the West Indies.
During the events of Black Sails: Season 3 Episode 3 XXI. played by Rory Acton Burnell
During the 12th day in the Doldrums, Apocalyptic Crewman starts to speak out loud how he and the crew of The Walrus are all dead men.
On day 18 on The Walrus, Palmer and Oates are accused of stealing rations. John Silver holds a trial to figure out which one of them stole the rations. Oates insists he would never steal from the crew. Palmer says that during everything that has happened, he has never complained. Captain Flint walks up and shoots Palmer in the head and then starts to reload his gun. Flint then shoots Oates in the head.
On day 21, Billy Bones tells Flint that they spotted a whale carcass. De Groot says that whale's float after they rot, but Silver insists they go after it and tells Flint he is coming also. Silver and Flint bring a shark back to the ship and feed the crew with it. After the wind returns, the crew of The Walrus arrive at an island and go ashore.