Origin
Very little is known about Jenny Greenteeth. At some point she descended into the subway system, where she became a member of the Dead Dogs, one of the subway pirate crews that haunt the tunnels below New York.
Creation
Jenny Greenteeth was created by Grant Morrison and Cameron Stewart. She made her first appearance in Seven Soldiers: Guardian #2
Major Story Arcs
Seven Soldiers of Victory
Jenny Greenteeth encourages No-Beard to allow Guardian to join them in launching an attack on their mortal enemies, the Sun Lubbers. She is on the trains when they crash. Her fate is unknown, presumed dead.
Powers and Abilities
Jenny Greenteeth has no known superhuman powers or abilities.