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"Regina" is the Latin word meaning "queen", which coincides with her calling Avery Richman her "king". It is also the same as the character Regina from Dino Crisis, a Capcom video game co-designed by Shu Takumi, with whom she shares an identical design.
"Locomoti" is derived from the word "locomotive", referencing her occupation as a staff member aboard a train.
Her German and Spanish surnames are alternate spellings of her original name.