During Argo's Brief Cameo in the Original Series, she was Voiced by Cassandra Morris, who would later go on to also Voice Leafa. Here, Argo is now Voiced by Kimberly Campbell.
New Character Liten is voiced by Amalee in the English Dub, who got her start preforming English Covers of Anime Themes; some of her most popular Covers include Various Music from the Sword Art Online Franchise.