Old Man Reincarnates and Becomes a Genius Actor is a Manga/Manhwa/Manhua in (English/Raw) language, REINCARNATION series, english chapters have been translated and you can read them here. You are reading chapters on ManhwaZ fastest updating comic site. The Summary is
He gains out-of-this-world acting skills after reincarnating. Tanaka Taro, a humble actor, is stabbed to death one day and reincarnates as a little girl named Yamashita Maki. With a newfound talent for acting, Maki becomes a child prodigy and transforms the lives of everyone around her. Get ready for the overwhelming impact she has on the world!!