The Gump is a minor character of the 1985 film, Return to Oz.
He was portrayed by Stephen Norrington with Lyle Conway doing his voice.
Prior to the events of the film, he is an ordinary Gump walking through the woods until he heard a loud noise and died. His head was mounted in the tower attic in the Emerald City's palace.
Sometimes later, when the magical Land of Oz was taken over by the Nome King and Mombi, who turned it to ruin. Eventually Dorothy Gale (accompanied by her chicken Billina) returned to Oz and met Tik-Tok the mechanical copper man. When Dorothy is taken captive by Mombi and locked in her tower, under her imprisonment, she met Jack Pumpkinhead, who helped the little party make an attempt to escape.
Together they devised a plan to escape the Emerald City; this involved using Mombi's Powder of Life to bring to life the old Gump head in the tower and attaching it to a sofa with palm leafs for wings to fly them out. Mombi became aware of their plot and tried to stop them, but despite some complications they finished and brought to life the flying Gump sofa and all escaped out the tower window. They flew across the night sky and the Gump began to tell the story of what happened to him and how surprised he was to find himself in such an odd situation, although he was still willing to aid the group in their escape.
Later, he remained a mounted head and was placed in Princess Ozma's mirrored palace.