Anime and video games

The Scarlet spelling makes it less a name, less Gone With The Wind and Scarlett Johansson, and more the bright red color that inspired it in the first place.

It is popularly claimed that the name Wendy was invented by Sir James Barrie in 1904 for the big sister character in his play Peter Pan, which was followed by the classic novel in 1911. Barrie supposedly took it from the nickname "fwendy-wendy", that he was called by a young girl acquaintance.