Omens, but their attempted search resulted in Mumm-Ra's release and Grune betraying Panthro. While fighting Grune, Panthro fell down an abyss and was seemingly killed. Panthro survived and constructed the ThunderTank, which he later used to save Lion-O's group from Slithe's platoon in "Song of the Petalars". Though he questioned Lion-O's ability to lead at first, feeling that he was too young to be the King, Panthro eventually accepted him as the new Lord of the ThunderCats. Panthro's weapons consist of nunchucks and the ThunderTank. He later gets a pair of extending cybernetic arms after getting his organic ones cut off by a closing portal. Wilykit and Wilykat (voiced by Madeleine Hall and Eamon Pirruccello) - Fraternal twin siblings who were originally from a lower-class family in the countryside, consisting of them, their parents, and younger brother and sister. After the twins lost their father to a tornado, the family began to become more down-trodden, with their mother struggling to make ends meet. Eventually, the Wily-twins decided to run away to find the lost city of El Dara, so they could become rich and help their family. Upon arriving to Thundera, the sister (Wilykit) and brother (Wilykat) were forced to become street urchins and pickpockets in order to survive the slums, with their aspirations being the only thing keeping them going. When the Lizards attacked Thundera, the two managed to escape during the chaos, before eventually teaming up with Lion-O, Tygra, Cheetara and Snarf on their journey. Wilykit uses a special melodic instrument that can hypnotize their opponents. Snarf (voiced by Satomi Kōrogi) - A creature of unknown origin and species who was originally Lion-O's personal caretaker when he was a baby. Now that Lion-O is fully grown and can take care of himself, Snarf is more of a pet to the young lord, but still cares very much about Lion-O and is very protective of him. Snarf speaks in a strange language that only Lion-O seems to understand. Antagonists and villains Mumm-Ra (voiced by Robin Atkin Downes) - The main villain of the series. An eternal servant of the Ancient Spirits of Evil, Mumm-Ra is himself a Spirit of Evil, with the sole purpose of conquering the universe. Centuries prior to the series, Mumm-Ra used advanced technology and dark magic to enslave all the animals into serving him. With them under his command, he sought to gather the four