Skullduggery is the ninth studio album by Canadian-American rock band Steppenwolf. The album was released in May 1976, by Epic Records. It was the third of four released by Epic Records, and the last to feature keyboardist Wayne Cook, who left to join Player in 1977.[1] It is the also the last album to be released simply under the Steppenwolf name before the group rebranded themselves as John Kay & Steppenwolf.