Superman (real name Kal-El secret identity Clark Kent) is an alien from the planet Krypton. He crash-landed on Earth after his planet's destruction where he was adopted and raised by a family who had discovered him. After discovering his origin, Superman decided to defend the Earth and its people.
Captured by Darkseid
Superman was among the Justice League members captured by Darkseid and held in a chamber above the fires of Apokolips. Once the Titans defeated Darkseid, he fell into the fires twice and later exploded in his chamber until they decided to leave him and the rest of the members alone.
Teen Titans Go! comic book series
As Cyborg showed Robin around a blimp he had acquired as a result of the success of a Silicon Valley startup, ChirpFolio, the two spotted Superman flying nearby, who responded with a smile and a thumbs-up as he flew past them.
In his Fortress of Solitude, Superman picked up the phone where he was asked if he had the city of Kandor in a bottle. Not realizing he had been the subject of a prank from Beast Boy, the hero responded that the question didn't make sense.