Richard "Dick" Giordano was an American comics artist and editor whose long and prosperous career included introducing Charlton Comics' "Action Heroes" stable of superheroes and serving as executive editor of DC Comics. He worked on a wide range of titles over the years, including Batman, Green Lantern/Green Arrow, Teen Titans, Aquaman, Wonder Woman, Action Comics among countless others. His style was very much in the Neal Adams mold, making him a popular go-to artist in the 70s and 80s.
Mike Sekowsky was an American comics artist known as the penciler for DC Comics' Justice League of America during most of the 1960s (including their initial appearance in Brave and the Bold #28), and as the regular writer and artist on Wonder Woman during the late 1960s and early 1970s. Sekowsky's long career began in the early 40s for Timely Comics drawing the adventures of Captain America, and Sub-Mariner among others in titles such as All Winners Comics, Daring Comics, Marvel Mystery Comics, and Young Allies Comics. He would transition to DC Comics in the 1950s where we would work on Romance and Science Fiction stories including drawing the first appearance of Adam Strange in Showcase #17. He would co-create the Justice League of America with Gardner Fox and continue as it's artist for over 60 issues. Sekowsky would go on to have memorable runs as artist and writer on Metal Men, Wonder Woman, and the Supergirl feature in Adventure Comics.