Freas also painted insignia and posters for Skylab I; pinup girls on bombers while in the United States Army Air Forces; comic book covers; the covers of the "GURPS" worldbooks "Lensman" and "Planet Krishna"; and more than 500 saints' portraits for the Franciscans executed simultaneously with his portraits of Alfred E. Neuman for "Mad". He was very active in gaming and medical illustration. His cover of Queen's album "News of the World" (1977) was a pastiche of his October 1953 cover illustration for Tom Godwin's "The Gulf Between" for "Astounding Science Fiction" magazine.