Among the many projects Dunbier edited for Wildstorm were Alan Moore's America's Best Comics line ( including Promethea, Tom Strong, The League of Extraordinary Gentlemen & Top 10), Arrowsmith and Challengers of the Unknown.
Tomb of the Unknown Soldier | Out of the Unknown | Challengers of the Unknown | Unknown Pleasures | The Unknown Warrior | Persons Unknown (TV series) | Persons Unknown | Domain of unknown function | XCOM: Enemy Unknown | Unknown Hinson | Tomb of the Unknown Soldier (Moscow) | The Unknown Comic | The Challengers (game show) | Letter from an Unknown Woman | Challengers | X the Unknown | Unknown years of Jesus | Unknown to No One | Unknown Mortal Orchestra | Unknown Component | Unknown Chaplin | Toward the Unknown | The Unknown Witches of Oz | The Unknown Child (disambiguation) | The Unknown Child | The Tale of the Unknown Island | The Dream-Quest of Unknown Kadath | ''The Challengers'' (game show) | The Challengers | Omega the Unknown |
) and Malcolm Wheeler-Nicholson's National Allied Publications which became Harry Donenfeld's Detective Comics (Batman, Superman, et al.) - as well as Silver and Bronze Age comic book series such as Legion of Super-Heroes, Challengers of the Unknown, Doom Patrol, Metal Men, Aquaman, Justice League of America, et al.
From the 1950s through the 1970s, Sparling provided art for a variety of publishers, including Harvey Comics (the Pirana), Charlton Comics (adaptations of The Six Million Dollar Man and The Bionic Woman), DC Comics (Challengers of the Unknown, Secret Six, Eclipso) and Marvel Comics (Captain America).