The Marvel vs. Capcom series provided a twist on Charlie's fate. In his ending for X-Men vs. Street Fighter, Charlie is captured by M. Bison, who performs terrible experiments on him. Charlie's fate would be left up in the air until Marvel Super Heroes vs. Street Fighter, where a secret character by the name of Shadow appeared. Shadow would later appear in Marvel vs. Capcom: Clash of Super Heroes as a secret helper character. However, the normal Charlie would appear in Marvel vs. Capcom 2: New Age of Heroes.