Lion-O is the main character from the animated television series ThunderCats. He is the leader of the ThunderCats, a group of humanoid cats who fight against evil forces. Lion-O wields the Sword of Omens, which grants him various powers, including the ability to see far and wide. His character is known for his bravery, strong sense of justice, and determination to protect his friends and home. Lion-O is depicted as a young adult with a muscular build, often wearing a blue and orange outfit. He has a distinctive mane of red hair and sharp feline features. Throughout the series, he learns valuable lessons about leadership and responsibility while battling villains like Mumm-Ra, the main antagonist.