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I think it should be the most-recent name she goes by professionally. Pages here get renamed if a creator changes how they're credited, such as James Roday Rodriguez and Suzy Eddie Izzard.
Creator Page Guidelines has the rundown: the page is at their most recent preferred name, the list of roles can indicate alternative ways of crediting, and redirects can be used where applicable.
Edited by Synchronicity

I'm writing some Japanese voice actress pages, and one of them is for Moeka Kishimoto. In 2021, she changed her stage name to "Moe Kahara". Because she has roles in which she went by one or the other name, which one for the page should I go by - her actual name or her current stage name?