Jaga: The Wise
Age: Dead. The geriatric jaguar couldn't hack the journey from the doomed Thundera to Third Earth and died en route.
Sex: Male
Species/Race: Thunderian Jaguar
Alliance: Good Guy

Appearance: See Picture. When visiting from the Astral World, he's surrounded by a blue aura.

Weapons/Skills/Powers: Well, he's dead so about all he can do now is dish out smarmy advice from beyond. In his prime, he was proctector and wielder of the Sword of Omens. He developed such a rapport with the Sword, that he was able to command it wordlessly.

Background: Before going to the great nursing home in the sky, The Astral World, Jaga was often referred to as Lord Jaga, as well as Jaga the Wise. He appeared to be the Tcats leader before he died, even though Lion-O's father, Claudis, was Lord of Thundera. He knows much about the Sword of Omens, and often appears to Lion-O to advise him on how to effectively wield the magical blade. It's a good thing for the ThunderCats that there's an afterlife, otherwise their collective goose would've been cooked a long time ago...
Back on Thundera, Jaga got in some trouble by unwittingly taking up with Grune's new wife, the lioness Leonda. This is how Felina came into the picture. Throughout the story, both Lion-O and Felina will have to try to come to terms with many things they will learn about Jaga, this just being one of them.