Elfric is an antagonist of the fantasy comic series Sláine by Pat Mills. He first appeared in the story Time Killer (2000AD progs 411-434, 1985) as "Elfric Serpent-Eye", the changeling leader of a force of Norsemen in the Battle of Clontarf. Sláine's sponsor, Myrddin, gave Sláine the task of killing Elfric, explaining that Elfric was an agent of the Cythrons, a pre-human race of aliens who sought to alter the course of history by fomenting wars and farming humans like swine.