Callisto

Few villains leave a mark quite like Callisto, who made her Modern Age comics debut in Xena #2 (2006) from Dynamite Entertainment, brought to life by writer John Layman and artist Fabiano Neves. Sharing the pages with none other than Xena and Gabrielle themselves, she steps into a world already crackling with adventure and mythology. Her three catalog appearances may be compact, but the company she keeps speaks volumes — when you're causing trouble alongside icons like these, every panel counts.