They were educated at Allan Glen's School[2] where their first portfolio of art was rejected by their careers guidance teacher, who encouraged them to work in a bank.

This included a weekly comic strip, Captain Clyde, an unemployed superhero based in Glasgow, for The Govan Press, a local newspaper, plus various issues of DC Thomson's Starblazer, the science fiction counterpart to that company's Commando title.

Morrison spent much of the early 1980s touring and recording with their band The Mixers, occasionally writing Starblazer for D.C. Thomson and contributing to various UK indie titles.

In 1982, Morrison submitted a proposal involving the Justice League of America and Jack Kirby's New Gods entitled Second Coming to DC Comics, but it was not commissioned.

[11] Comics historian Les Daniels observed in 1995 that "Arkham Asylum was an unprecedented success, selling 182,166 copies in hardcover and another 85,047 in paperback.

St. Swithin's Day's anti-Margaret Thatcher themes proved controversial, provoking a small tabloid press reaction and a complaint from Conservative Member of Parliament (MP) Teddy Taylor.

Covering similar themes to Alan Moore and Eddie Campbell's From Hell,[19] the work utilised cut-up techniques, a Ouija board and collage rather than conventional panels to tell the story.

[20] In 1993 Morrison, fellow Glaswegian comic writer Mark Millar and John Smith were asked to reinvigorate 2000 AD for an eight-week run called "The Summer Offensive".

[21] DC Comics launched its Vertigo imprint in 1993, publishing several of Morrison's creator-owned projects, such as the steampunk mini-series Sebastian O and the graphic novel The Mystery Play.

In 1996 Morrison wrote Flex Mentallo, a Doom Patrol spin-off with art by Frank Quitely,[22] and returned briefly to DC Universe superheroics with the short-lived Aztek, co-written with Mark Millar.

[23] In 1996, Morrison was given the Justice League of America to revamp as JLA,[24] a comic book that gathered the "Big Seven" superheroes of the DC universe into one team.

Tapping into pre-millennial tension, the work was influenced by the writings of Robert Anton Wilson, Aleister Crowley and William Burroughs, and Morrison's practice of chaos magic in Thee Temple ov Psychick Youth.

[28][29] In 1998 Morrison published the prose piece "I'm A Policeman" in Sarah Champion's millennial short story collection Disco 2000; though no explicit connection to The Invisibles is made, there are strong thematic links between the two works.

[42] Their penultimate arc "Planet X" depicted the villain Magneto infiltrating and defeating the X-Men in the guise of new character Xorn and developing an addiction to the power-enhancing drug "Kick".

In 2005 Morrison wrote Seven Soldiers,[53] which featured the Manhattan Guardian, Mister Miracle, Klarion the Witch Boy, Bulleteer, Frankenstein, Zatanna and Shining Knight.

Giving them the unofficial title of "revamp guy", DiDio asked them to assist in sorting out the DC Universe in the wake of the Infinite Crisis.

[57] In the same year, Morrison and Quitely worked on pop star Robbie Williams' album Intensive Care, providing intricate Tarot card designs for the packaging and cover of the CD.

[58] Morrison provided outline story and script work for two video games, Battlestar Galactica (2003) and Predator: Concrete Jungle (2005), both by Vivendi Universal.

At the 2007 San Diego Comic-Con, DC Comics announced that Morrison would write Final Crisis, a seven-issue mini-series slated to appear in 2008 with J. G. Jones handling the art.

700 (Aug. 2010) saw the return of Morrison to the title and a collaboration with an art team that consisted of Tony Daniel, Frank Quitely, Andy Kubert, and David Finch.

[77] Morrison returned to creator-owned work in 2010 with the eight issue Vertigo series Joe the Barbarian, launched in January with artist Sean Murphy.

This small-scale convention, curated by Morrison, featured a number of comics industry guests, including Robert Kirkman, Darick Robertson, Jason Aaron, Jim Lee, Gerard Way, Jonathan Hickman, Frank Quitely, J. H. Williams III, and Chris Burnham.

[90] In September 2014, as part of Legendary Comics' big foray into the industry, Morrison launched another key creator-owned book: Annihilator with Frazer Iving.

[91] A work of cosmic horror, it stars a monstrous Hollywood screenwriter named Ray Spass in his attempts to finish the script for the next tentpole blockbuster, while coming into contact with the character he's writing about: the diabolical Max Nomax, The Devil himself.

[93] A tale of apocalyptic cosmic horror, Nameless sought to approach the genre from a new lens, with different influences, rather than lean to its iconic founder H.P Lovecraft, drawing on everything from the Tarot to The Qlippoth.

Other strips included The Smile of the Absent Cat with artist Gerhard, as well as Mythopia, Beachhead, Option 3, Nihilophilia, Ten Sounds That Represent a Kind of Person: A Historical Parody, The House of Heart's Desire, and Beyond the Word and the Fool, with many others.

Morrison also penned several editorials for the magazine during this period, whilst writing occasional prose stories for Ahoy Comics backup features.

[110] Morrison co-created and worked as a writer and producer on the 2020 TV series Brave New World for the Peacock Streaming Service, having developed it for adaptation.

[113] In March 2021 it was announced that Morrison would write a four issue series entitled Superman and The Authority, illustrated by Mikel Janin, to be published by DC in late 2021.

[122] Speaking later of the article, Morrison said that they hated being perceived as only recently coming out: "I'm 62 years old—I had my sexuality shit figured out a long time ago!