Elden "the Beater" is a major character in the first, second, fourth, fifth, sixth, and seventh seasons. He is played by starring cast member Alexander Ludwig and debuts in "Fire and Blood". Elden was a member of Lucius Dragen's Butcher's Boys. Despite his allegiance, he wasn't as sadistic or as cruel as the rest of the members, as he was known to be more calculating and cautious in his dealings, and this was often misinterpreted by his fellow members of the Boys as cowardice.
He was taken in by Lucius Dragen as a child after his parents died due to fever. Lucius took him in as some sort of protegé, and Elden in turn adopted many of Lucius' ideals and abilities, including the mastery of the Memory Palace.