- The anime series "Mission: Yozakura Family" has introduced new voice cast members and characters after episode 21. The new characters include Akira Yozakura, the youngest sibling of the Yozakura family, and Yui Yozakura, the eldest sibling. The article provides details on the new voice actors and the roles they will be playing.

- Akira Yozakura is described as the youngest and most mischievous member of the Yozakura family. He is voiced by Yuma Uchida, who is known for his roles in other anime series such as "Haikyuu!!" and "Bungo Stray Dogs." Yui Yozakura, the eldest sibling, is voiced by Maaya Sakamoto, a renowned voice actress known for her roles in "Fate/stay night" and "Cowboy Bebop."

- The article also mentions that the new characters and voice cast will be introduced in the upcoming episodes of "Mission: Yozakura Family." This suggests that the series is continuing to expand its cast and storyline, potentially adding more depth and complexity to the overall narrative.