Mayumi[1] is an Investigateen in Phillip Fathom, Deep Sea Detective and sister to Investigateen Tony. She is critical of The Fishwife, believing that the villain could be a more responsible example of women in the field of science. She is played by Kate Micucci.

Her brother Tony claims she is a know-it-all. She's also shorter than Tony.



  1. @thrillingadv: Kate Micucci's Investigateen in this week's episode is spelled "Mayumi."

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