Len Wein is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 comic book

Comic book

A comic book or comicbook is a magazine made up of comics, narrative artwork in the form of separate panels that represent individual scenes, often accompanied by dialog as well as including...

 writer

Writer

A writer is a person who produces literature, such as novels, short stories, plays, screenplays, poetry, or other literary art. Skilled writers are able to use language to portray ideas and images....

 and editor

Editing

Editing is the process of selecting and preparing written, visual, audible, and film media used to convey information through the processes of correction, condensation, organization, and other modifications performed with an intention of producing a correct, consistent, accurate, and complete...

 best known for co-creating DC Comics

DC Comics

DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

' Swamp Thing

Swamp Thing

Swamp Thing, a fictional character, is a plant elemental in the created by Len Wein and Berni Wrightson. He first appeared in House of Secrets #92 in a stand-alone horror story set in the early 20th century . The Swamp Thing then returned in his own series, set in the contemporary world and in...

 and Marvel Comics

Marvel Comics

Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

' Wolverine

Wolverine (comics)

Wolverine is a fictional character, a superhero that appears in comic books published by Marvel Comics. Born as James Howlett and commonly known as Logan, Wolverine is a mutant, possessing animal-keen senses, enhanced physical capabilities, three retracting bone claws on each hand and a healing...

, and for helping revive the Marvel superhero

Superhero

A superhero is a type of stock character, possessing "extraordinary or superhuman powers", dedicated to protecting the public. Since the debut of the prototypical superhero Superman in 1938, stories of superheroes — ranging from brief episodic adventures to continuing years-long sagas —...

 team the X-Men

X-Men

The X-Men are a superhero team in the . They were created by writer Stan Lee and artist Jack Kirby, and first appeared in The X-Men #1...

 (including the co-creation of Nightcrawler

Nightcrawler (comics)

Nightcrawler is a fictional character, a comic book superhero in the Marvel Universe. He has been associated with both the X-Men and Excalibur, originally appearing in comic books published by Marvel Comics. Created by writer Len Wein and artist Dave Cockrum, he debuted in Giant-Size X-Men #1...

, Storm, and Colossus

Colossus (comics)

Colossus is a fictional character, a superhero in the Marvel Comics universe. Created by writer Len Wein and illustrator Dave Cockrum, he first appeared in Giant-Size X-Men #1...

). Additionally, he was the editor for writer Alan Moore

Alan Moore

Alan Oswald Moore is an English writer primarily known for his work in comic books, a medium where he has produced a number of critically acclaimed and popular series, including Watchmen, V for Vendetta, and From Hell...

 and illustrator Dave Gibbons

Dave Gibbons

Dave Gibbons is an English comic book artist, writer and sometime letterer. He is best known for his collaborations with writer Alan Moore, which include the miniseries Watchmen and the Superman story "For the Man Who Has Everything"...

' influential DC miniseries

Miniseries

A miniseries , in a serial storytelling medium, is a television show production which tells a story in a limited number of episodes. The exact number is open to interpretation; however, they are usually limited to fewer than a whole season. The term "miniseries" is generally a North American term...

 Watchmen

Watchmen

Watchmen is a twelve-issue comic book limited series created by writer Alan Moore, artist Dave Gibbons, and colourist John Higgins. The series was published by DC Comics during 1986 and 1987, and has been subsequently reprinted in collected form...

.

Wein was inducted into the Will Eisner Comic Book Hall of Fame in 2008.
In 2003 interview, Len Wein recalled that he "was a very sickly kid.