Marvel Family in the context of "Otto Binder"

Shazam (/ʃəˈzæm/), also known as The Captain and formerly known as Captain Marvel, is a superhero in American comic books originally published by Fawcett Comics and currently published by DC Comics. Artist C. C. Beck and writer Bill Parker created the character in 1939. Shazam first appeared in Whiz Comics #2 (cover-dated Feb. 1940), published by Fawcett Comics. Shazam is the alter-ego of William Joseph "Billy" Batson, a young boy who is granted magical powers by the Wizard by speaking the magic word "SHAZAM!", an acronym of six "immortal elders": Solomon, Hercules, Atlas, Zeus, Achilles, and Mercury, and transforms into a costumed adult superhero with various superpowers derived from specific attributes of the aforementioned elders.

The character battles evil in the form of an extensive rogues' gallery, most of them working in tandem as the Monster Society of Evil, including primary archenemies Black Adam, Doctor Sivana and Mister Mind. Billy often shares his powers with other children, primarily his sister Mary Batson and their best friend/foster brother Freddy Freeman, who also transform into superheroes and fight crime with Billy as members of the Marvel Family (also known as the Shazam Family or Shazamily). The character also serves as a notable member of several teams, including the Justice League and various other derivatives, Justice Society of America, and the Teen Titans.

Black Adam (Teth-Adam) is a fictional character appearing in American comic books published by DC Comics. He was created by Otto Binder and C. C. Beck, and first appeared in the debut issue of Fawcett Comics' The Marvel Family comic book in December 1945. Since DC Comics licensed and acquired Fawcett's characters in the 1970s, Black Adam has endured as one of the most popular archenemies of the superhero Shazam and the Marvel Family alongside Doctor Sivana and Mister Mind.

Black Adam was originally depicted as a supervillain and the ancient magical champion predecessor of the champion Shazam, who fought his way to modern times to challenge the hero and his Marvel Family associates. Since the turn of the 21st century, however, Black Adam has been redefined by DC Comics writers Jerry Ordway, Geoff Johns, and David S. Goyer as an ancient Kahndaqi and corrupted antihero attempting to clear his name and reputation. He came from a fictional Middle Eastern country named Kahndaq, located at the southern tip of the Sinai Peninsula, and was portrayed as a hero who liberated his homeland from slavery. Featured roles in such comic book series as Justice Society of America, Villains United, Infinite Crisis, and 52 have elevated the character's prominence in the DC Universe, culminating with DC's 2021 line-wide Infinite Frontier relaunch, wherein he joins the Justice League. In 2009, Black Adam was ranked as IGN's 16th-greatest comic book villain of all time.

Captain Marvel Jr., also known as Shazam Jr. (Frederick Christopher "Freddy" Freeman), is a superhero appearing in American comic books formerly published by Fawcett Comics and currently published by DC Comics. A member of the Marvel/Shazam Family team of superheroes associated with Captain Marvel/Shazam, he was created by Ed Herron, C.C. Beck, and Mac Raboy, and first appeared in Whiz Comics #25 in December 1941.

In the original Fawcett Comics and DC continuity, Captain Marvel Jr.'s alter-ego was Freddy Freeman, a disabled newsboy saved by Captain Marvel from the villainous Captain Nazi. To save the dying boy's life, Captain Marvel shares his powers with Freddy. By saying the name "Captain Marvel", Freddy is transformed into Captain Marvel Jr., a blue costumed version of himself possessing powers of superhuman strength, speed, wisdom, and more. Junior derived his powers from Captain Marvel himself, while the other Marvels derived their powers from the wizard Shazam. Unlike Captain Marvel, Junior remained a teenager in his transformed state.