What is the alter-ego of the DC comics character "Superman"?

The alter ego of the DC Comics character Superman is Clark Kent. Clark Kent is the secret identity that Superman assumes in order to blend in with the human society and carry out his superhero duties without attracting attention. As Clark Kent, he portrays a mild-mannered and clumsy reporter working for the Daily Planet newspaper in Metropolis. This dual identity allows him to live a normal life and maintain relationships while also saving the world as the powerful and invulnerable Superman.