Ack is a large built Viking that is easy to spot in battle when he takes up arms against the dragons. Like most men of Berk’s Viking village, he is a fighter whose energy and enthusiasm translates to unparalleled bravery on the battlefield.  Despite his intensity, Ack is mindful of certain “battlefield etiquette” as he is known to stop in the midst of a conflict to courteously greet others before resuming the fight.  Much like his fellow Vikings, Ack’s wild mannerisms convey his deep devotion to his kinsmen as he defends for his home and beloved leader, Stoick.