However, there was a brief tease to the man originally known as Teth-Adam in Shazam! when The Wizard told Billy about how the last championed he’s bequeathed powers to became corrupted.
Originally the plan was for Dwayne Johnson’s Black Adam to debut in Shazam!, but it was later decided that the character was worthy of his own movie first, resulting in the superpowered Billy Batson instead going up against Doctor Sivana and the Seven Deadly Sins during his origin story.