For a brief period in 1968, Boyette drew issues of the DC Comics aviator series "Blackhawk". That same year, his friend and Charlton colleague Rocke Mastroserio helped Boyette join the stable of artists freelancing for Warren Publishing's black-and-white horror-comics magazines, initially having him ghost-pencil, uncredited, "The Rescue of the Morning Maid" in "Creepy" #18 (Jan. 1968), which credited artist Mastroserio inked. Boyette would go on to do credited work for such other Warren titles as "Eerie" occasionally through 1970 before making Charlton his base. In the mid-1970s, he drew the feature "The Tarantula" in Atlas Comics' "Weird Suspense".