High Quality Content by WIKIPEDIA articles! The Rag Doll (Peter Merkel) is a fictional character, a supervillain in the DC Comics Universe. He was first introduced as an adversary for the Golden age Flash in a story published in Flash Comics #36 (December 1942). In the series Starman, James Robinson has revived the character, giving him a darker reimagining. His son, Peter Merkel, Jr., currently uses his father's name as a member of the Secret Six. Peter Merkel, a native of the Midwestern United States, was born with a unique condition: "Triple-jointedness". Like the more common "double-jointedness", Merkel's condition was characterized by extremely extensible ligaments and tendons, though to a significantly extended degree.