Fantômas is a fictional character created by French writers <a href="/c/books/credit/278385/marcel-allain/">Marcel Allain</a> and <a href="/c/books/credit/278384/pierre-souvestre/">Pierre Souvestre</a>. Allain continued the series after Souvestre died in 1914.
The popular depiction of Fantômas as wearing a blue mask, black gloves, and using technological devices did not originate in the novels, but is a result of the popularity of the trilogy of Fantômas movies directed by André Hunebelle in the 1960s.