- Dark Knight Trilogy
Characters who have appeared in any of the movies in the Dark Knight Trilogy.
- Marvel Rivals
Characters who appear as playable heroes or villains in the game Marvel Rivals.
- Batman: The Long Halloween
Characters who appear in the iconic DC comic Batman: The Long Halloween.
- The Saga of the Swamp Thing
Characters who appeared in Alan Moore's celebrated run on The Saga of the Swamp Thing (issues #20-64, 1984-1987).
- DC K.O.
Contestants in DC K.O., the 2025-2026 comic event by Joshua Williamson, Scott Snyder, and Javi Fernández.
- Debuted 2010s (Marvel)
Marvel characters who made their first comic book appearance between 2010 and 2019.
- X-Men
Characters who have been members of the X-Men.
- Batman: The Telltale Series
Characters who appeared in Batman: The Telltale Series game.
- Mutant (Marvel)
Marvel characters who are mutants — humans born with the X-gene granting them extraordinary abilities.
- No siblings
Characters who are known to have no siblings in canon.
- The Authority
Characters who have been/are members of The Authority.
- Created by Bill Finger
Characters co-created by Bill Finger.
- Created by Len Wein
Characters co-created by writer Len Wein.
- White Lantern Corps
Characters who have been/are members of the White Lantern Corps.
- Quiet Council of Krakoa
Members of the Quiet Council, the governing body of the mutant nation of Krakoa.
- Sinister Six
Characters who have been/are members of the Sinister Six.