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Swamp Thing

Swamp Thing

162 appearances Β· Bronze Age Β· 1972–2026 Β· 6 key issues
Who is Swamp Thing?

The definitive Swamp Thing is Alec Holland, a biochemist whose Louisiana bayou laboratory is firebombed by saboteurs. Doused in his own experimental bio-restorative formula and set ablaze, he plunges into the swamp and rises transformed into a shambling, muck-and-vegetation plant elemental. (An earlier prototype, Alex Olsen, debuted in House of Secrets #92 in 1971.)

Few characters in DC's vast library arrived with the atmospheric force that Swamp Thing did in 1972, conjured from the Bronze Age imagination of Len Wein and the breathtaking pen of Bernie Wrightson β€” a creative partnership that immediately announced this was something special. Over more than five decades of publication, this shambling figure of muck and mystery has proven one of comics' most enduring and literarily ambitious creations, headlining multiple landmark series including The Saga of Swamp Thing and racking up six key issues that any serious collector will recognize as essential. The company he keeps is genuinely rarefied β€” his pages have been graced by the likes of Batman, Superman, and Green Lantern β€” a testament to how deeply this creature of the bayou is woven into the fabric of the DC universe. With 145 catalog appearances and a publishing history stretching into 2026, Swamp Thing isn't just a Bronze Age curiosity; he's a living institution.

Identity

Real name. Alex Olsen (original Swamp Thing); the franchise's famous holder is Alec Holland

Powers. Plant-elemental muck-encrusted body; superhuman strength, regeneration, control over plant life

Affiliations. Justice League Dark, Parliament of Trees (franchise/Alec Holland incarnation); original Olsen story was a standalone Gothic horror tale

β˜… First appearance
House of Secrets #92
Jun 1971

Top series

Covers through the years β€” 1972–2024

Swamp Thing #1 β˜… 1972
Swamp Thing #1
Showcase #94 β˜… 1977
Showcase #94
DC Comics Presents #38 β˜… 1981
DC Comics Presents #38
The Saga of Swamp Thing #37 β˜… 1985
The Saga of Swamp Thing #37
Infinity, Inc. #46 1988
Infinity, Inc. #46
The Comet #8 1992
The Comet #8
The Spectre #62 β˜… 1998
The Spectre #62
Vertigo Visions: Ten Years of Artwork on the Edge #[nn] 2003
Vertigo Visions: Ten Years of Artwork on the Edge #[nn]
John Constantine, Hellblazer: The Gift #[nn] 2007
John Constantine, Hellblazer: The Gift #[nn]
Saga of the Swamp Thing #5 2011
Saga of the Swamp Thing #5
Convergence: Crisis #2 2015
Convergence: Crisis #2
Doomsday Clock #9 2019
Doomsday Clock #9
John Constantine, Hellblazer: Dead in America #2 2024
John Constantine, Hellblazer: Dead in America #2

Appearances (1–150 of 162, oldest first)

The Rocket's Blast-Comicollector (1964)
Mundo de Aventuras Especial (1975)
#17
Challengers of the Unknown (1958)
Showcase (1956)
DC Special Series (1977)
The Comics Journal (1977)
#48
DC Comics Presents (1978)
Green Lantern (1960)
The Saga of Swamp Thing (1982)
The Best of DC (1979)
The Saga of Swamp Thing Annual (1982)
#1
Blackhawk (1957)
DC Sampler (1983)
#3
Who's Who: The Definitive Directory of the DC Universe (1985)
Crisis on Infinite Earths (1985)
#8
All-Star Squadron (1981)
Roots of the Swamp Thing (1986)
The Spectre (1987)
Infinity, Inc. (1984)
Who's Who: Update '87 (1987)
#3
Saga of the Swamp Thing (1987)
Secret Origins (1986)
#23
Blab! (1988)
#3
Hellblazer (1988)
#9
Comics Scene (1987)
Firestorm the Nuclear Man (1987)
#92
Amazing Heroes (1981)
Swamp Thing: Love and Death (1990)
The Comic Relief Comic (1991)
Black Orchid (1991)
Robin II (1991)
#1
The Comet (1991)
#8
Vertigo Jam (1993)
#1
San Diego Comic Con Comics (1992)
#3
Guy Gardner: Warrior (1994)
Terminal City (1996)
#6
Batman Special (1997)
#1
Vertigo Visions: Ten Years of Artwork on the Edge (2003)
Batman: Die neuen Abenteuer (2003)
#5
John Constantine, Hellblazer: The Gift (2007)
DC Comics Classics Library: Roots of the Swamp Thing (2009)
Comic Book Comics (2008)
#5
Green Arrow (2011)
#2
Justice League Dark (2011)
Brightest Day (2011)
#3
Justice League Dark Annual (2012)
#1
DC Universe by Alan Moore (2013)
Adventures of Superman (2013)
#2
Talon (2012)
#15
Trinity of Sin: The Phantom Stranger (2013)
#16
Aquaman (2011)
#31
Batman (2011)
#33
Batman: Kelley Jones Gallery Edition (2014)
Swamp Thing Annual (2012)
#3
All Star Western (2012)
#5
Convergence: Crisis (2015)
#2
Graphic Ink: The DC Comics Art of Ivan Reis (2015)
Harley Quinn Special (2016)
Convergence (2016)
John Constantine, Hellblazer (2011)
#16
Superman (2017)
#3
Young Monsters in Love (2018)
#1
Suicide Squad Annual (2018)
#1
Doomsday Clock (2018)
#9
Suicide Squad (2017)
#8
A Wealth of Pigeons (2020)
Detective Comics (2011)
Absolute Swamp Thing by Alan Moore (2020)
#2
Future State: Immortal Wonder Woman (2021)
#1
Comic Book Creator (2013)
#28
Dark Crisis #0 FCBD Special Edition (2022)
John Constantine, Hellblazer: Dead in America (2024)
Die Saga von Swamp Thing (Deluxe Edition) (2024)
#1
Knight Terrors Sonderband (2024)
#2