Venditti is primarily known for his superhero work, although he has written characters with a military background including former Marine Jon Stewart, who regularly appears in Green Lantern, and Ethan Avery, an Army soldier who stars in Damage. However, Six Days holds a special significance for Venditti as his own uncle was among those Airborne soldiers who fought and died at the Battle of Graignes and he will appear as a character in the book.