Emperor Rukai

Emperor Rukai (voiced by Craig McCracken) is. He is the old friend of King Solar Flare,, Optimus Prime, Princess Cornelia, , Ford Pines, , , ,. He, his wife Fausticorn and their children really hated Nightmare Moon, King Sombra, Nightmare Trix, Nightmare Hiro, Princess Black Hole, Princess Twivine Sparkle, Nightmare Rarity, Cerberus the Nightmare Train, Bill Cipher and Timothy the Ghost Engine for stealing the 13 Journals,, recreated Armageddon and Weirdmageddon, destroy Princess Yuna, her friends, Dipper, Mabel, Gideon, Pacifica, Scrappy-Doo, Wander, Sylvia, Mac and Bloo, , ,.