In Power Rangers: Lightspeed Rescue, the demon prince who serves Queen Bansheera is Prince Olympius.
Olympius first appears as Impus, a young demon cared for by Bansheera’s forces. He is Bansheera’s son and eventually assumes his adult identity after inheriting Diabolico’s Star Power. That transformation makes him one of the season’s principal villains and gives him a much more direct role in the demons’ campaign against the Lightspeed Rangers.
Olympius is often confused with Diabolico because both are major demon leaders and both serve Bansheera. Diabolico initially commands the demon army, while Olympius rises after Diabolico’s failures and later takes control of him. Loki and Vypra are also Bansheera’s followers, but neither is the demon prince. Olympius ultimately battles the Rangers repeatedly, including alongside Diabolico in the season’s final conflict.