Kaynar (voiced by Dee Bradley Baker) - A jackal-like psychopath who is recruited as one of Mumm-Ra's generals. Kaynar was about to be placed in solitary confinement within a Dog Prison when he was recruited by Slithe to be one of Mumm-Ra's new generals. Though preferring his cell, Kaynar accepts Slithe's proposal when he mentions that he can slaughter ThunderCats while allowed to "say goodbye" to his jailers. Vultaire (voiced by Michael McKean) - A prefect of Avista who is arrogant and sees himself above those who live on the land, especially the ThunderCats whom he considers to be manipulative barbarians. Though aiding the ThunderCats in fighting off Mumm-Ra's army, Vultaire betrays his fellow Avistans and aligns himself with Mumm-Ra upon witnessing his power firsthand. Vultaire shoots down Tygra and then quotes to Addicus "the enemy of my enemy is my friend". Vultaire joins Slithe, Kaynar, and Addicus into fighting Tygra, Panthro, and Cheetara prior to the latter knocking him out before Tygra can get payback for the bird's treachery. After Mumm-Ra claimed the Tech Stone, Vultaire joined Mumm-Ra's forces into retreating from Avista. Pumyra (voiced by Pamela Adlon) - A cat who originally fought during the fall of Thundera before being wounded and left to die under rubble. In her final moments, Pumyra died disillusioned, hateful, and resentful towards Lion-O and company for leaving Thundera, believing they had ignored her pleas for help and had left her and their species to die. Sensing her hate, Mumm-Ra resurrected Pumyra to serve him as his spy and lover, placing her among the captive Thunderian slaves to be sold to Ratar-O where she was later sold to Dobo. From there, meeting Lion-O and managing to keep her need for revenge in check, Pumyra earns his trust and love while serving as a beacon for Mumm-Ra to regain the Sword of Plun-Darr and track the ThunderCats' movement. It was during the siege of Avista that Pumyra reveals her true colors by giving the Tech Stone to Mumm-Ra. After taking hits from both Ro-Bear Bill and Dobo, Pumyra leaves with Mumm-Ra while promising to kill Lion-O the next time they meet. Ancient Spirits of Evil (voiced by Jim Cummings, Robin Atkin Downes and Kevin Michael Richardson) - Four dark spirits that are the source of Mumm-Ra's powers and his eternal masters. They resemble a Lizard, a Jackal, a Monkey, and a Vulture. The Ancient