IGN in the context of "Doctor Sivana"

Allan Alcorn (born January 1, 1948) is an American computer scientist and video game designer. He is best known for creating Pong, one of the first video games. In 2009, he was chosen by IGN as one of the top 100 game creators of all time.

QuackShot Starring Donald Duck, known in Japan as I Love Donald Duck: The Treasure of King Garuzia, is a 1991 platform game developed and published by Sega for the Sega Genesis. The player controls Donald Duck as he, alongside his three nephews, Huey, Dewey, and Louie, attempt to track down a lost artifact which was treasured by King Garuzia. The game was influenced by the Indiana Jones film series.

QuackShot was released with a positive response from video game publications. The game was universally lauded for its graphics, with magazines like Sega Pro describing them as "some of the best graphics around", and the game was also praised for its music and puzzles. However, the game was criticized for its overall difficulty and the controls in certain situations. Retrospectively, QuackShot was also criticized for its lack of speech samples by IGN.

Bane is a supervillain appearing in American comic books published by DC Comics. Created by Chuck Dixon, Doug Moench, and Graham Nolan, the character first appeared in Batman: Vengeance of Bane #1 (December 10, 1992). He is regarded as one of Batman’s most enduring enemies, part of the collective of adversaries that make up Batman's rogues gallery. In his comic book appearances, Bane is an international criminal with a combination of brute strength and exceptional intelligence. Born and raised in the Peña Duro prison on the Caribbean island of Santa Prisca, where he served a life sentence for his father King Snake's revolutionary activities, Bane becomes a test subject for the super-steroid known as "Venom". After escaping from the prison, Bane travels to Gotham City, where he defeats Batman and breaks the superhero's back. This event is commonly referred to as "Breaking the Bat", and Bane is often regarded as one of the few villains to have significantly challenged Batman both physically and mentally.

The character has been adapted in various media incarnations, portrayed in film by Robert Swenson in the 1997 film Batman & Robin, and by Tom Hardy in the 2012 film The Dark Knight Rises. In television, Bane was portrayed by Shane West in the Fox series Gotham. Henry Silva, Héctor Elizondo, Danny Trejo, Fred Tatasciore, JB Blanc, and others have provided Bane's voice in animation and video games. IGN's list of the Top 100 Comic Book Villains of All Time ranked Bane as #34.

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.

Dream of the Endless is a fictional character, an anthropomorphic personification who first appeared in the first issue of The Sandman, written by Neil Gaiman and published by DC Comics. One of the seven Endless, who are inconceivably powerful beings older and greater than gods, Dream is both lord and personification of all dreams and stories, and all that is not in reality (which, in turn, Dream may define by his existence). He has taken many names, including Morpheus, Oneiros, Kai'ckul, and the Sandman, and his appearance can change depending on the person who is seeing him. Dream was named the sixth-greatest comic book character by Empire. He was also named fifteenth in IGN's 100 Top Comic Book Heroes list.

After the events of The Sandman: The Kindly Ones that led to Dream's death at the hands of the Furies, Daniel Hall becomes the new Dream.