Warhammer Ultramarine Cosplay at Otakon From the uploader: Say hello to Jeremy and behold his insane Ultramarine cosplay at Otakon! This man was epic! He and his Warhammer cosplay buddies were the stars of the con on Saturday during Otakon 2019. Jeremy’s attention to detail was bonkers. The more I shot his cosplay, the more impressed I was with the many, many, many details. Sorry for the short interview but it was hard keeping the fans of this cosplay at bay.