His body of work in the comic book industry is vast, but fans will best remember him for his work on 2000 AD, where he penned Judge Dredd, and later on, his work on Batman titles in the 80s and 90s. His comics career spanned five decades, starting with the Starlord comic strip for IPC in 1970 and ending with a war story, Battle Special, in 2020. He also worked on Strontium Dog, starting in 1980, a British comics series about a mutant bounty hunter.'Batman: Knightfall' Gets 25th Anniversary Edition"). Also, he co-created Ratcatcher, who was eventually in The Suicide Squad movie (see "'The Suicide Squad' Featurette").
Alan Grant was a comic book legend, condolences to all.