The new found leader of the Thundercats with the blood of royalty flowing through his viens. From growing at a fas rate in the sleep chamber, he had no choice but to become more responsible for his team, and protecting everyone from harms way.
Lord of the ThunderCats, Lion-O, based on the lion, wields the legendary Sword of Omens, able to fire bolts of energy and allow Lion-O to see across great distances with its power of "Sight Beyond Sight," and the Claw Shield, a gauntlet that launches grappling lines from its claws. A mere child of twelve years old at the time of Thundera's destruction, Lion-O aged to adulthood during the trip to Third Earth when his suspension capsule failed to prevent his aging. Although cunning and skillful, he is truly a child in a man's body, and throughout the series, must learn what it takes to become a true leader and gain true maturity.