Lion-O is the Lord of the Thudercats, their king and leader, yet he's not as he appears. Although his body is fully developed, his mind is that of a child. He was the same age as the thunderkittens when they escaped Thundera, but a malfunction in his suspension chamber caused him to age straight through his teens. this means he never truly grew up, but he'll grow into his role as king. With the enchanted Sword of Omens and claw shield, Lion-O has powers that surpasses those of all the Thundercats. With Jaga's help, in "spirit" form, Lion-O has learned to trust in the eye of thundera, and the Code that binds all Thundercats. Lion-O knows the meaning of teamwork. When he is in trouble, he can call the other Thundercats with the sword, by calling them with the Thundercat Signal high in the sky. The sword can also give him "sight beyond sight" so he can see where danger is about. Lion-O is the son of Claudus the former lord of the thundercats.

LION-O (lord of the Thundercats)