 Borgnine later reappeared in the episodes "Ditchin'" and "Shuffleboarding", voicing his recurring role, with Tim Conway as Barnacle Boy.In "Dear Vikings", English actor Ian McShane voiced Gordon, the leader of the large group of Vikings outside of Bikini Bottom.Dennis Quaid also appeared in the "Grandpappy the Pirate" as Grandpa Redbeard, Mr. Krabs' grandfather.