Born as Mark John Buckingham May 23, 1966 in Clevedon, United Kingdom. He initially started working professionally on strips and illustrations for a British satire magazine called The Truth in 1987 where he first worked with Neil Gaiman illustrating some of his articles. His American debut came the following year as inker on DC Comics Hellblazer, taking over as penciller from issue 18. Some of Mark's earliest (non-professional) work appeared in early issues of the Clevedon Youth CND newsletter in the early 1980s (c.1982/83) in which he saterised members of the group in a fun and amusing manner. Copies of these are now very hard to find, although there a few still known to be in exsistance. He is most famous for his work on Marvelman (Miracleman, in the USA), Hellblazer, and Fables, including a story in the original graphic novel 1001 Nights of Snowfall. His Marvel work includes inking Chris Bachalo's pencils on Generation X, Ghost Rider 2099, and penciling Paul Jenkins' run on Peter Parker: Spider-Man. For DC Comics, Buckingham has inked the two Death miniseries and was the original penciller on the Titans series. In the 1990s Mark shared a studio with Beano and Marvel artist Kev F Sutherland, working together on Marvel's Star Trek and Dr Strange. During the Vert-igo Voices: Fables Forum panel at the 2009 San Diego Comic Con, Fables creator and writer Willingham-Bill announced that he and Buckingham will switch roles in an up-coming one-off, for Fables issue #100. Buckingham will write and Willingham-Bill will illustrate.[4] He was married in Gijón, Spain in August 2006 to journalist and TV newscaster Irma Page. His best man was Neil Gaiman.[5] Buckingham currently resides in Spain.

Kieth first came to prominence in 1984 as the inker of Matt Wagner's Mage, his brushwork adding fluidity and texture to the broad strokes of Wagner's early work at Comico Comics. In 1989, he drew the first five issues of writer Neil Gaiman's celebrated series The Sandman, but felt his style was unsuited to the book (specifically saying that he "felt like Jimi Hendrix in The Beatles") and left, handing over to his former inker Mike Dringenberg. He acted as illustrator on two volumes of writer William Messner-Loebs' Epicurus the Sage and drew an Aliens miniseries for Dark Horse Comics, among other things, before creating The Maxx in 1993 for Image Comics, with, initially, writing help from Messner-Loebs. It ran for 35 issues and was adapted, with Kieth's assistance, into an animated series for MTV. Since then, as a writer-artist, he has gone on to create Friends of Maxx, Zero Girl, Four Women and Ojo. Ojo comprises the first and My Inner Bimbo the second, in a cycle of original comic book limited series published by Oni Press. Loosely connected, the cycle will concern the intertwined lives of people with each other and sometimes with a supernatural entity known as the Mysterious Trout. Kieth has stated that other characters from The Maxx series will appear in this cycle of stories. My Inner Bimbo #1 was published in April 2006. Issue #2 was delayed past its original release date; It was finally resolicited in "Previews" in 2007 and hit the store shelves in November 2007. DC Comics' Batman/Lobo: Deadly Serious, a two-issue prestige format mini-series that started in August 2007, was written and drawn by Kieth. This was followed by 2009's two-issue prestige format mini-series Lobo: Highway to Hell, written by Scott Ian and featuring art by Kieth.