Mitsuko Hoshi (星光子 Hoshi Mitsuko) is a Japanese actress. Her real name is Momoko Karumi (つつみ みつこ Karumi Momoko). She played Yuko Minami in Ultraman Ace and later she reprised her role again in Ultraman TaroUltraman Mebius, and Great Decisive Battle! The Super 8 Ultra Brothers, in which her daughter, Shiko, played as Yuko's daughter. Her other role outside Yuko was Ryoko from a Ragon segment from the 12th episode of Ultra Zone.

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