Casshern was created as the protagonist of the 1973 anime series 'Neo-Human Casshern', designed by Tatsunoko Production to embody the themes of heroism and sacrifice in a futuristic setting.
The original TV anime series 'Neo-Human Casshern' aired, establishing the character in popular culture and introducing his unique design and story to audiences.
In 2008, the character design of Casshern was updated for the anime 'Casshern Sins', featuring a darker and more complex interpretation of the hero which influenced his portrayal in later adaptations.
A live-action film adaptation starring the character Casshern was released in 2004, bringing the character into a new medium and expanding his presence in real-world media.