The Star King is the most powerful person in the galaxy. He is shown with long red hair and full-body tattoos. Johanna, Jaster's mom, was a direct descendant of the Star King, which makes Jaster a descendant as well. Jaster uses the Star King's power four times, in the battles against Beast Seed, Johanna, Mother and Valkog. Using the power gives him a red aura, along with the Star King's tattoos and enormous strength.