Alex de Campi is well known for her 2005 mini-series Smoke (published by IDW Publishing, art by Igor Kordey), which was nominated for the Eisner Award for Best Limited Series, and her 2006 manga series Kat & Mouse (published by Tokyopop, art by Federica Manfredi). De Campi's work falls outside the superhero genre, with Smoke being a political thriller, and Kat & Mouse detailing the adventures of two mystery-solving high school students (a "CSI for tweens"); she has published work for children (e.g. Agent Boo) and for the European market (e.g. her French language sci-noir series Messiah Complex). Robert Hack is a comic book artist and illustrator based in Pennsylvania. He is the cover artist for IDW's Doctor Who series and has worked on Chilling Adventures of Sabrina for Archie Comics.

Following the success of that series, Hack also provided the opening credit illustrations for the Netflix adaption.