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Waylon Jones
Waylon Jones

Waylon Jones

218 appearances Β· Bronze Age Β· 1985–2026 Β· 2 key issues
Who is Waylon Jones?

Born with a rare regressive atavism that gave him a thick, scaly hide and superhuman strength, Waylon Jones was raised in brutal circumstances that hardened him into a fearsome criminal. His condition worsens over time, as the primal reptilian side of his brain steadily overtakes his humanity.

Waylon Jones is one of DC's most enduring figures lurking in the shadows of Gotham's rogues gallery, introduced to the world in 1985's Who's Who: The Definitive Directory of the DC Universe #5 β€” a Bronze Age debut that planted him firmly in the canon alongside the Dark Knight's most iconic adversaries. With 169 catalogued appearances spanning an impressive four-plus decades, he's proven himself a genuine fixture across flagship titles like Detective Comics, Batman, and the prestige Absolute Batman, keeping dangerous company with the likes of Bruce Wayne, Robin, the Joker, and Harvey Dent. Two of those appearances carry key-issue status, a testament to the weight this character carries with serious collectors. Created by Len Wein, Waylon Jones is the kind of Gotham denizen who has refused to fade into the background β€” and with appearances running all the way to 2026, his story is very much still being told.

Identity

Real name. Waylon Jones

Powers. Regressive Atavism: Killer Croc is afflicted with what seems to be some form of regressive atavism, meaning he has inherited some of the traits of ancestral species of the human race. Over time the primal reptilian part of his brain gains more control of his psyche.

β˜… First appearance
Detective Comics #523
Feb 1983

Trivia

  • Before casual fans ever pictured a hulking sewer-dwelling reptile, Waylon Jones was conceived as a far less monstrous, more realistic Batman foe whose atavistic condition made him more of a sideshow freak than the huge reptilian brute most collectors recognize today.dc.fandom.com
  • DC's official character page confirms that Jones ran away and joined the circus as a sideshow attraction before turning to crime β€” a cornerstone of his backstory that quick summaries focused only on the sewer-living villain almost always leave on the cutting room floor.dc.fandom.com
  • Jones's look didn't arrive fully formed: his design and depiction visibly evolved from a smaller, more human figure into a much more anthropomorphic reptile, a shift that DC continuity reference material itself acknowledges as a gradual becoming more crocodilian rather than any fixed one-time transformation.dc.fandom.com

Top series

Covers through the years β€” 1985–2024

Who's Who: The Definitive Directory of the DC Universe #5 β˜… 1985
Who's Who: The Definitive Directory of the DC Universe #5
Secret Origins #23 1988
Secret Origins #23
Catwoman #50 1997
Catwoman #50
Robin #72 2000
Robin #72
Batman: Legends of the Dark Knight #163 2003
Batman: Legends of the Dark Knight #163
Firestorm #21 2006
Firestorm #21
Solomon Grundy #5 2009
Solomon Grundy #5
Green Lantern: The Animated Series #7 2012
Green Lantern: The Animated Series #7
Batman #36 2015
Batman #36
Bombshells: United #19 2018
Bombshells: United #19
Nightwing #77 2021
Nightwing #77
Batman #146 2024
Batman #146

Appearances (1–150 of 218, oldest first)

Who's Who: The Definitive Directory of the DC Universe (1985)
#5
World's Finest Comics (1941)
Secret Origins (1986)
#23
Arkham Asylum (1989)
Batman: Dark Knight Gallery (1996)
#1
Batman Sonderband (1997)
#1
Batman: Prodigal (1997)
The Batman Chronicles Gallery (1997)
#1
Batman: Poison Ivy (1997)
Batman Special (1997)
#1
The Batman and Robin Adventures (1995)
#23
Catwoman (1993)
Batman: The Dark Knight Adventures (1998)
Batman: Shadow of the Bat (1992)
Robin (1993)
Batman: Gotham Adventures (1998)
Batman: Gotham Knights (2000)
#14
Joker: Last Laugh (2001)
#5
DC Premium (2001)
#21
Batman: Die neuen Abenteuer (2003)
Batman: Legends of the Dark Knight (1992)
Batman Adventures (2003)
Batman - Die neuen Abenteuer: Hush (2004)
Manhunter (2004)
#2
Bizarro World (2005)
Nightwing: Year One (2005)
Firestorm (2004)
#21
Villains United: Infinite Crisis Special (2006)
#1
The Batman Strikes (2004)
#25
Superman (2006)
Infinite Crisis Companion (2006)
Justice League Wedding Special (2007)
#1
World War III (2007)
Justice League of America (2006)
#19
Countdown to Final Crisis (2008)
Batman: The Brave and the Bold (2009)
Batman: Arkham Asylum: The Road to Arkham (2009)
Solomon Grundy (2009)
#5
Tiny Titans (2008)
The Brave and the Bold (2007)
#29
Batman: Battle for the Cowl Companion (2009)
Joker's Asylum II: Killer Croc (2010)
#1
Batman: The Return of Bruce Wayne (2010)
#3
Gotham City Sirens (2009)
#13
Arkham Asylum: Madness (2010)
Gotham City Sirens: Songs of the Sirens (2011)
Gotham Central (2008)
#4
The All-New Batman: The Brave and the Bold (2011)
#7
The Infinite Crisis Omnibus (2012)
Batwoman (2011)
#11
Green Lantern: The Animated Series (2012)
#7
Batman Beyond Unlimited (2012)
#11
Batman: Li'l Gotham (2013)
DC Comics Presents: Harley Quinn (2014)
#1
DC Universe Presents (2012)
#3
Batman '66 (2013)
Batman by Doug Moench & Kelley Jones (2014)
#1
Batman: Kelley Jones Gallery Edition (2014)
Legends of the Dark Knight 100-Page Super Spectacular (2014)
Forever Evil: Arkham War (2014)
Batman / Superman (2013)
Batman / Superman Annual (2014)
#2
Convergence Shazam (2015)
#2
Batman: Earth One (2012)
#2
Grayson (2014)
#13
Batman and Robin (2012)
#7
Injustice: Gods among Us: Year Four Annual (2016)
#1
DC Comics: Bombshells (2015)
Harley Quinn Special (2016)
DC Comics: Bombshells Annual (2016)
#1
Superman / Batman (2014)
#5
Shade, the Changing Girl (2016)
#5
Batman '66 Meets Wonder Woman '77 (2017)
Batman / Shadow (2017)
#3
Batman: Rebirth Deluxe Edition (2017)
Nightwing (2016)
#29
Suicide Squad (2016)
#27
Batman: Der dunkle Prinz (2018)
#1
Harley Quinn & the Gotham City Sirens Omnibus (2018)
Bombshells: United (2017)
#19
Batman: Prelude to Knightfall (2018)
Batman vs. Lobo (2018)
Legion of Super-Heroes: Millennium (2019)
#1
Relazioni pericolose (2019)
Batman Arkham: Victor Zsasz (2020)
Batman: Arkham Asylum (2020)