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Worldwide, Casey (Casey , 凯西 , كيسي , among others...) is a widespread gender-neutral first name. The forename Casey is characteristic of the United States, where it is quite a common gender-neutral name, Australia, and Malta, where it is quite a common girly name. Not in comparison with a country's population, it most frequently occurs in the United States, Australia, and the United Kingdom. Also, Casey is the last name as well as the forename.
Casey is also a prevalent name for the fictitious and mythical characters: Casey Jones , the fictional Teenage Mutant Ninja Turtles character, Teenage Mutant Ninja Turtles: Out of the Shadows; Casey Jones , the fictional Teenage Mutant Ninja Turtles character, created for the film script ''The Blue Door''; Casey Jones , the fictional character in the 1990–2007 Teenage Mutant Ninja Turtles film series; Casey Jones , the fictional character in the 1987–1996 Teenage Mutant Ninja Turtles animated television series, The Manhattan Project, Part 1 and Casey Coot , the Disney Duck character, The Life and Times of Scrooge McDuck Companion, and in many other works.