Troy Calypso is the secondary antagonist of Borderlands 3, and a co-leader of the Children of the Vault alongside his twin sister, Tyreen Calypso. Together, the two are referred to as the Twin Gods by their followers. Naturally weaker than his sister, Troy plays a relatively passive, even submissive role in comparison to her. However, after killing Maya and taking her powers, he gains an ever-increasing power-high and quickly begins forcing himself into the limelight alongside Tyreen, much to her chagrin.