Captain Marvel (DC Comics)

Captain Marvel, also known as Shazam (), is a fictional superhero appearing in American comic books published by DC Comics. Artist C. C. Beck and writer Bill Parker created the character in 1939. His main villains are Doctor Sivana and Black Adam.
Captain Marvel first appeared in "Whiz Comics" #2 (cover-dated Feb. 1940), published by Fawcett Comics. He is the alter ego of Billy Batson, a boy who, by speaking the magic word "SHAZAM" (acronym of six "immortal elders": Solomon, Hercules, Atlas, Zeus, Achilles, and Mercury), can transform himself into a costumed adult with the powers of superhuman strength, speed, flight, and other abilities. 
Based on book sales, the character was the most popular superhero of the 1940s, outselling even Superman.
Zachary Levi played Shazam! in the 2019 DC Extended Universe movie "Shazam!".