for MAT headquarters' destruction. Before he can execute the mother/daughter pair, Grotes was forced to support Kodaigon when Jack appeared, taking the statue as a shield due to his vulnerable physiology. Grotes was split into half by Jack's Ultra Spark, causing Kodaigon to revert into the go-shintai it was. As revealed in Ultraman Mebius, remains of the were salvaged by Crew GUYS years prior to the series and disposed after attempts in weaponizing it hit a dead end. One of the remaining cells transformed an ebisu statue into a second Kodaigon. The Alien Grotes is voiced by , who also portrayed his unnamed human form. : An alien race trying to invade the Earth. One female operative disguised herself as to slip into MAT and destroy their new radar device. After falling in love with Kishida and discovered him as the radar's creator, she betrayed her race to sacrifice her life in killing Granadas. She was immortalized on Earth under a human name by MAT members. Akane Hirota is portrayed by . : An alien aiming to invade Earth after his home planet became uninhabitable from constant development of super weapons. To kill Go, he first used Robonezu and later on mind-controlled a doctor and Erika as his minions. After Go was sedated with an anesthesia, the alien exposed itself to attack the city. Jack managed to kill him through his Ultra Bracelet, therefore freeing his minions from the mind control devices. He is voiced by Isao Yatsu. : A young alien girl forcefully mind-controlled by Alien Messie to assassinate Go. She disguised herself as Jiro's new classmate named and slipped in a pen-shaped bomb to kill Go, but the plan failed as the bomb was quickly detected. With her status as an assassin exposed, Go, Minami and Jiro tracked her where the mind control device was quickly removed. Messie puts her under control again alongside a local doctor to disable Go. Erika is portrayed by . : An alien disguised as a raree show old man on Earth. He injured Toru to frame Go for the attack in order to suspend him and Jack from interfering with his race's invasion. When Toru exposed the old man's identity, Kishida sniped him with a gun. The unnamed raree old man is portrayed by while the Zoole leader is voiced by Isao Yatsu. : An alien aiming to invade Earth. Using Yametarans,