A solar flare has awakened Spark Dolls from the depths of the earth and the ocean! Fifteen years later, Daichi Ozora transforms into Ultraman X to battle threats from both aliens and monsters. He is also a member of Xio, a team created to battle the monstrous threats.

• Kensuke Takahashi
• Akane Sakanoue
• Yoshihiko Hosoda
• Ukyo Matsumoto
• Hayato Harada
• Haruka Momokawa
• TAKERU
• Chiaki Seshimo