| Work | Description | Characters |
|---|---|---|
| BanG Dream! Girls Band Party! Pico | Japanese chibi anime series | 1 |
| Baptism of Fire | novel by Andrzej Sapkowski | 5 |
| Barakamon | Japanese anime television series | 1 |
| Barakamon | Japanese television drama | 1 |
| Barakamon | Japanese manga series | 1 |
| Bar Association | episode of Star Trek: Deep Space Nine (S4 E16) | 9 |
| Barbie | 2023 film by Greta Gerwig | 2 |
| Basics, Part I | episode of Star Trek: Voyager (S2 E26) | 1 |
| Batman | 1960s American television series | 6 |
| Batman | American comic book series | 12 |
| Batman | 1966 film directed by Leslie H. Martinson | 4 |
| Batman | action video game developed by Ocean Software based on the 1989 film of the same name | 3 |
| Batman | 1986 3D isometric action-adventure game by Ocean Software | 1 |
| Batman | 1989 film by Tim Burton | 9 |
| Batman | 1943 film serial directed by Lambert Hillyer | 2 |
| Batman | arcade game from 1990 | 3 |
| Batman/Aliens | 2 | |
| Batman and Harley Quinn | 2017 film directed by Sam Liu | 1 |
| Batman and Robin | 1949 film serial | 2 |
| Batman: Arkham Asylum | video game | 9 |
| Batman: Arkham City | 2011 video game | 17 |
| Batman: Arkham City Lockdown | video game | 2 |
| Batman: Arkham Knight | 2015 video game | 14 |
| Batman: Arkham Origins | 2013 action-adventure game | 10 |
| Batman: Arkham Origins Blackgate | 2013 video game | 4 |
| Batman: Arkham VR | 2016 video game | 3 |
| Batman: Bad Blood | 2016 film directed by Jay Oliva | 3 |
| Batman Begins | video game based on the film of the same name | 2 |
| Batman Begins | 2005 British-American superhero film directed by Christopher Nolan | 8 |
| Batman Beyond | Title of six DC Comics Series | 2 |
| Batman Beyond | American animated television series | 7 |
| Batman Beyond: Return of the Joker | 2000 film by Curt Geda | 4 |
| Batman Beyond: Return of the Joker (video game) | 2000 video game | 2 |
| Batman: Dark Tomorrow | video game | 1 |
| Batman/Deathblow: After the Fire | 1 | |
| Batman Forever | 1995 action video game | 4 |
| Batman Forever | 1995 American superhero film based on the DC Comics character Batman directed by Joel Schumacher | 9 |
| Batman: Gotham by Gaslight | 2018 animated film directed by Sam Liu | 3 |
| Batman: Gotham City Racer | 2001 video game | 4 |
| Batman: Hush | early 2000s story arc in Batman comic book series | 1 |
| Batman: Hush | film | 14 |
| Batman: Mask of the Phantasm | 1993 film by Bruce Timm, Eric Radomski | 1 |
| Batman & Mr. Freeze: SubZero | 1998 film by Boyd Kirkland | 2 |
| Batman: Mystery of the Batwoman | 2003 film by Curt Geda | 3 |
| Batman Ninja | 2018 Japanese animated film | 5 |
| Batman: Return of the Caped Crusaders | 2016 film by Rick Morales | 2 |
| Batman: Return of the Joker | 1991 video game | 2 |
| Batman Returns | video game series based on movie on same name | 3 |
| Batman Returns | 1992 superhero film directed by Tim Burton | 7 |
| Batman & Robin | 1997 American superhero film based on the DC Comics character Batman directed by Joel Schumacher | 8 |
| Batman & Robin | 1997 video game | 2 |
| Batman: The Animated Series | American animated television series based on the DC Comics character | 14 |
| Batman: The Animated Series (video game) | video game | 2 |
| Batman: The Brave and the Bold | American animated television series (2008-2011) | 17 |
| Batman: The Brave and the Bold – The Videogame | 2010 video game developed by WayForward | 3 |
| Batman: The Caped Crusader | video game | 2 |
| Batman: The Dark Knight Returns | 2012 two-part animated film directed by Jay Oliva | 3 |
| Batman: The Enemy Within | episodic point-and-click graphic adventure video game developed by Telltale Games | 2 |
| Batman: The Killing Joke | 2016 direct-to-video animated film directed by Sam Liu | 1 |
| Batman: The Telltale Series | 2016 video game | 1 |
| Batman: The Video Game | platform game developed by Sunsoft for the Nintendo Entertainment System and Game Boy | 3 |
| Batman: Under the Red Hood | 2010 direct-to-video animated superhero film directed by Brandon Vietti | 2 |
| Batman Unlimited: Animal Instincts | 2015 film | 2 |
| Batman Unlimited: Mech vs. Mutants | 2016 film directed by Curt Geda | 1 |
| Batman Unlimited: Monster Mayhem | 2015 film | 3 |
| Batman: Vengeance | video game | 4 |
| Batman vs. Robin | 2015 animated superhero film directed by Jay Oliva | 1 |
| Batman vs. Two-Face | 2017 film | 1 |
| Batman v Superman: Dawn of Justice | 2016 American superhero film by Zack Snyder | 15 |
| Batman: Year One (film) | 2011 film directed by Lauren Montgomery, Sam Liu | 3 |
| Battle Lines | Book by Dave Galanter and Greg Brodeur, from 1999 | 6 |
| Battlestar Galactica | 2004–2009 American science fiction television series, reimagining of a 1970s series | 1 |
| Battlestar Galactica | 2003 US science fiction miniseries | 1 |
| Battlestations! | book by Diane Carey | 5 |
| Battle Tendency | the second story arc of the manga series JoJo's Bizarre Adventure written and illustrated by Hirohiko Araki | 1 |
| Batwoman | American TV series | 2 |
| Bean | 1997 British-American comedy film directed by Mel Smith | 1 |
| Beastars | Japanese manga series | 3 |
| Beastars | Japanese anime television series | 3 |
| Beauty and the Beast | 1991 American animated musical fantasy romance film | 7 |
| Beauty and the Beast | 2017 musical film produced by Walt Disney Pictures | 6 |
| Beavis and Butt-Head | American adult animated sitcom created by Mike Judge | 3 |
| Before Dishonor | Book by Peter David, from 2007 | 16 |
| Before Watchmen | 2012 series of comic books published by DC Comics, Watchmen prequel | 6 |
| Beginnings | two-part episode of The Legend of Korra (S2 E7-8) | 1 |
| Beginnings, Part 1 | episode of The Legend of Korra (S2 E7) | 1 |
| Behind Enemy Lines | novel by John Vornholt | 5 |
| Be Human | 1936 film by Dave Fleischer | 1 |
| Bem | Short story | 6 |
| Ben 10 | 2005 American animated television series | 1 |
| Ben 10 | American media franchise | 3 |
| Ben 10: Alien Force | American animated television series | 1 |
| Ben 10: Alien Swarm | 2009 television film directed by Alex Winter | 1 |
| Ben 10: Destroy All Aliens | 2012 television film directed by Victor Cook | 1 |
| Ben 10: Omniverse | American animated television series | 1 |
| Ben 10: Race Against Time | 2007 television film directed by Alex Winter | 1 |
| Ben 10: Secret of the Omnitrix | 2007 animated science fiction film | 1 |
| Ben 10: Ultimate Alien | American animated television series | 1 |
| Beneath the Raptor's Wing Ⅰ | 6 | |
| Beneath the Raptor's Wing Ⅱ | 6 |