Announcing New Characters and Additional Cast for the TV Anime Sparks of Tomorrow, premiering July 2026 and streaming worldwide exclusively on Netflix! The newly revealed characters are four key characters throughout the whole story, along with the talented casts who will bring them to life. Yosuke Mizoe, the heir to the wealthy Mizoe Company, which built its fortune through steam engines, and a man obsessed with the 20th Century Electrical Catalog, voiced by Kouki Uchiyama. Seiroku Sakamoto, Kihachi’s older brother—an inventor passionately devoted to electricity, a charismatic figure who captivated those around him, but never return after the war—voiced by Daisuke Ono. Kengo Kuga, a sturdy and physically powerful former soldier with strength comparable to a steam locomotive, and the fiancé of Noriko, Inako’s older sister, voiced by Shunsuke Takeuchi. Noriko Momokawa, Inako’s dependable and skillful older sister who excels in martial arts and is Kengo’s fiancée, voiced by Minako Kotobuki. Stay tuned to see how these newly announced characters will interact with the protagonist Kihachi Sakamoto (voiced by Yuma Uchida) and the heroine Inako Momokawa (voiced by Sora Amamiya). To celebrate the character reveal, a character introduction video is now available on the official SNS and Kyoto Animation’s official YouTube channel. The video features newly released cut scenes as well, so be sure to check it out! Character Introduction Video