Clark Kent was the secret civilian identity of the fictional superhero Superman. In the beginning of the comic book series, from the late 1930s to the mid 1980s, Clark Kent was seen as a disguise for Superman. When Superman wanted to mix with ordinary civilians, he turned into Clark Kent to help him blend in. However, in 1986, a different artist envisioned Clark as the actual character and Superman as his disguise. Different people have different takes on the debate. In the comic books, Superman/Clark lived in DC Universe with other superheroes and villains. Superman's secret identity as Clark Kent was one of the DC Universe's greatest secrets. Only a few trusted people, such as Batman, were aware of it.
When Superman was disguised as Clark, he worked as a journalist at The Daily Planet newspaper, which allowed him to gather information about crimes in the city without giving away his true identity as a superhero. In order to make other people truly believe that he was a "normal" civilian, Clark adopted a largely passive and introverted personality. He displayed conservative mannerisms, a higher-pitched voice, and a slight slouch.

License information: CC BY-NC-SA 2.0
MPAA: PG
Go to source: https://www.commonlit.org/texts/superman-s-secret-identity