Captain Comet was an agent of the Earth Council, sometime in the future. He flew aboard the Starhope, an interplanetary space liner. His arch enemy was John Kidd, a murderous space pirate, and the descendant of the sea pirate, Captain Kidd. Captain Comet was a respected leader, capable of improvising electronic devices, skilled with his fist and with weapons. He carried a ray gun on his hip, and sometimes, a ceremonial sword.