Geoff Johns originally hails from Detroit, Michigan. He attended Michigan State University, where he earned a degree in Media Arts and Film. He moved to Los Angeles in the late 1990s in search of work within the film industry. Through perseverance, Geoff ended up as the assistant to Richard Donner, working on Conspiracy Theory and Lethal Weapon 4. During that time, he also began his comics career writing Stars and S.T.R.I.P.E. and JSA (co-written with David S. Goyer) for DC Comics. He worked with Richard Donner for four years, leaving the company to pursue writing full-time. His first comics assignments led to a critically acclaimed five-year run on the The Flash. Since then, he has quickly become one of the most popular and prolific comics writers today, working on such titles including a highly successful re-imagining of Green Lantern, Action Comics (co-written with Richard Donner), Teen Titans, Justice Society of America, Infinite Crisis and the experimental breakout hit series 52 for DC with Grant Morrison, Greg Rucka and Mark Waid. Geoff received the Wizard Fan Award for Breakout Talent of 2002 and Writer of the Year for 2005, 2006, 2007, and 2008 as well as the CBG Writer of the Year 2003 thru 2005, 2007 and CBG Best Comic Book Series for JSA 2001 thru 2005. Geoff also developed BLADE: THE SERIES with David S. Goyer, as well as penned the acclaimed “Legion” episode of SMALLVILLE. He also served as staff writer for the fourth season of ROBOT CHICKEN. Geoff recently became a New York Times Bestselling author with the graphic novel Superman: Brainiac with art by Gary Frank.

Keith Ian Giffen was an American comic book illustrator and writer. He is possibly best-known for his long runs illustrating, and later writing the Legion of Super-Heroes title in the 1980s and 1990s. He also created the alien mercenary character Lobo (with Roger Slifer), and the irreverent "want-to-be" hero, Ambush Bug. Giffen is known for having an unorthodox writing style, often using characters in ways not seen before. His dialogue is usually characterized by a biting wit that is seen as much less zany than dialogue provided by longtime collaborators DeMatteis and Robert Loren Fleming. That approach has brought him both criticism and admiration, as perhaps best illustrated by the mixed (although commercially successful) response to his work in DC Comics' Justice League International (1987-1992). He also plotted and was breakdown artist for an Aquaman limited series and one-shot special in 1989 with writer Robert Loren Fleming and artist Curt Swan for DC Comics. Giffen's first published work was "The Sword and The Star", a black-and-white series featured in Marvel Preview, with writer Bill Mantlo. He has worked on titles (owned by several different companies) including Woodgod, All Star Comics, Doctor Fate, Drax the Destroyer, Heckler, Nick Fury's Howling Commandos, Reign of the Zodiac, Suicide Squad, Trencher (to be re-released in a collected edition by Boom! Studios)., T.H.U.N.D.E.R. Agents, and Vext. He was also responsible for the English adaptation of the Battle Royale and Ikki Tousen manga, as well as creating "I Luv Halloween" for Tokyopop. He also worked for Dark Horse from 1994-95 on their Comics Greatest World/Dark Horse Heroes line, as the writer of two short lived series, Division 13 and co-author, with Lovern Kindzierski, of Agents of Law. For Valiant Comics, Giffen wrote XO-Manowar, Magnus, Robot Fighter, Punx and the final issue of Solar, Man of the Atom. He took a break from the comic industry for several years, working on storyboards for television and film, including shows such as The Real Ghostbusters and Ed, Edd 'n' Eddy. He is also the lead writer for Marvel Comics' Annihilation event, having written the one-shot prologue, the lead-in stories in Thanos and Drax, the Silver Surfer as well as the main six issues mini-series. He also wrote the Star-Lord mini-series for the follow-up story Annihilation: Conquest. He currently writes Doom Patrol for DC, and is also completing an abandoned Grant Morrison plot in The Authority: the Lost Year for Wildstorm.