Action Comics comics historian Les Daniels, artist Curt Swan became the definitive artist of Superman in the early 1960s with a "new look" to the character that replaced Wayne Boring's version. Bizarro World first appeared in the story "The World of Bizarros!" in issue #262 (April 1960). Writer Jim Shooter created the villain the Parasite in "Action Comics" #340 (Aug. 1966). Mort Weisinger retired from DC in 1970 and his final issue of "Action Comics" was issue #392 (September 1970). Murray Boltinoff became the title's editor until issue #418. Metamorpho was the backup feature in issues #413–418 after which the character had
Action Comics #1 (June 1938) sold at auction for $1 million, besting the $317,000 record for a comic book set by a different copy, in lesser condition, the previous year. The sale, by an anonymous seller to an anonymous buyer, was through the Manhattan-based auction company ComicConnect.com. Although DC had initially announced Marc Guggenheim as writer of the title following the "War of the Supermen" limited series, he was replaced by Paul Cornell. Cornell featured Lex Luthor as the main character in "Action Comics" from issues #890–900 and Death appeared in issue #894, with the agreement of the character's creator, Neil Gaiman.