Bob Layton is an American Comic book artist/ writer who co-founded Valiant Comics. His most famous works were at Marvel where he worked on a number of titles including Iron Man #128, the infamous demon in a bottle story line.
Howard Simpson, who also uses the pen name Poppy, worked on DC comic books like 'Green Lantern', 'The Outsiders', a couple of 'Secret Origin' titles and 'Young Alstars'. He was an inker on Dark Horse's 'Captain Crusader'. In the 1990s, he worked on First Publising's 'Grimjack' and 'Munden's Bar', Heroic Comics' 'Captain Thunder and Blue Bolt', 'Icicle' and 'League of Champions' and Topps' 'Ray Bradbury Comics: Martian Chronicles'. He also worked as a penciller, inker and background artist of several of Acclaim's Valiant imprint series, such as 'Turok', and illustrated 'Timon and Pumbaa' stories for Disney Adventures.