Panthax was the daemon spirit of Princess Leia Organa. He was a large, dark panther, which symbolized Leia's gentle spirit, intense emotions, and fierceness when protecting those she loved. Panthax was Leia's most trustworthy friend when she served the Rebel Alliance. He fought proudly against stormtroopers beside Leia and helped her run the leadership of the Rebellion through every galactic crisis during the Galactic Civil War. He bonded with Han Solo's daemon, Inferno, after Solo joined the Alliance and fell in love with Leia. He also crushed Jabba the Hutt's daemon while slave Leia was strangling Jabba himself. He was as astonished as she was when they found out they were brother and sister to Luke Skywalker and Americanoz, Luke's eagle daemon.