After going back to college and having a series of jobs, Grant found himself back in Dundee and living on Social Security. He then met John Wagner, another former D.C. Thompson editor, who was helping put together a new science fiction comic for IPC, 2000 A.D., and was unable to complete his other work. Wagner asked Grant if he could help him write the Tarzan'' comic he was working on; so began the Wagner/Grant writing partnership.
Grant then formed his partnership with Wagner after the pair lived and worked together; the pair eventually co-wrote Judge Dredd. They would work on other popular strips for the comic, including Robo-Hunter and Strontium Dog using the pseudonym T.B. Grover. Grant also worked on other people's stories, changing and adding dialogue, most notably Harry Twenty on the High Rock, written by Gerry Finley-Day.
Judge Dredd would be Grant's main concern for much of the 1980s. Grant and Wagner had developed the strip into the most popular in 2000AD as well as creating lengthy epic storylines such as The Apocalypse War.
Grant also wrote for other IPC comics such as the revamped Eagle.
The pair also created a four issue series for Epic Comics called The Last American. This series, as well as the Chopper storyline in Judge Dredd, is blamed for the breakup of the Wagner/Grant partnership. The pair split strips, with Wagner keeping Judge Dredd and Grant keeping Strontium Dog and Judge Anderson. Grant and Wagner continue to work together on special projects such as the Batman/Judge Dredd crossover Judgement on Gotham.
During the late 1980s, Grant experienced a philosophical transformation and declared himself an anarchist. The creation of the supervillain Anarky was initially intended as a vehicle for exploring his political opinions through the comic medium. In the following years, he would continue to utilize the character in a similar fashion as his philosophy evolved.
Lobo gained his own four issue mini series in 1990 which was drawn by Simon Bisley. This was a parody of the 'dark, gritty' comics of the time and proved hugely popular. After several other miniseries (all written by Grant, sometimes with Giffen as co-writer), Lobo received his own ongoing series. Grant was also writing L.E.G.I.O.N. (a Legion of Super-Heroes spin-off) and The Demon (a revival of Jack Kirby's character) for DC Comics. Grant also wrote the first issues of the new Batman title, Shadow of the Bat, which also saw him create three new characters, Jeremiah Arkham, Mr. Zsasz and Amygdala. This story arc, Batman: The Last Arkham, was later accompanied by his role as one of the main writers during the Knightfall crossover.
Grant was also part of the creative team for the short-lived weekly title Toxic! and was a consultant on the Judge Dredd Megazine. Due to the sheer volume of work he was doing, Grant let a new generation of writers try their hand on strips like Judge Dredd and Robo-Hunter. This often proved to be unsuccessful, however, and Grant found himself again writing for 2000AD.
In the mid 90's, Grant underwent a second philosophical transformation, declaring himself a follower of Neo-Tech, a philosophy created by Frank R. Wallace. When he was given the opportunity to create an Anarky mini-series, he redesigned the character accordingly. Following the success of the series, he was hired to create an ongoing monthly series for the character. Initially hesitant, he was persuaded to do so by series illustrator, Anarky co-creator, and personal friend, Norm Breyfogle. Named after the protagonist, Anarky was mired by what Grant felt was constant editorial interference, became a critical and financial failure, and was canceled after eight issues. Although he dislikes the 1999 series, he considers the original Anarky mini-series to be among his "career highlights."
He is one of the few professional comics writers to contribute to fanzines such as FutureQuake. He partly owns and provides scripts for Northern Lightz, a Scottish underground comic. Along with his wife Sue, he organises the annual Moniaive Comics Festival.
Grant has written two comic-based novels, The Stone King, (2001) featuring Batman and the Justice League of America, and Last Sons, (2006) featuring Superman, Martian Manhunter and Lobo. Since 1998, Alan has written scripts for Renga Media and now is writing the screenplay for Dominator X.
He has also written Kidnapped, an adaptation of the novel of the same name by Robert Louis Stevenson, with art by Cam Kennedy, published by Waverley Books. It is part of a project revolving around Edinburgh being the first UNESCO City of Literature in 2007 and various editions will be produced some of which will be handed out for free. A version with text adapted for reluctant readers will be published simultaneously by Barrington Stoke, and a Scots language translation by Matthew Fitt called Kidnappit is published by Itchy Coo. If things go well more adaptations may be in the works, although a sequel project based on The Strange Case of Dr. Jekyll and Mr. Hyde was commissioned due to the relatively high profile and warm reception of the Kidnapped adaptation. It is being promoted as part of the One Book - One Edinburgh 2008 campaign.
Alan Grant has written many comics of various publishing houses, mostly expressing science fiction themes. Much of his work for the Judge Dredd comic series was informed by his political leanings. Select writings also acted as vehicles for his personal meditations on philosophy, including the 1997 and 1999 Anarky series. He has also written scripts for television and film, and two novels for DC Comics.