"That's all I need...a Space Cowboy." —Col. Arthur Grant, Ultraman: Towads the Future episode The Hibernator Jack Shindo (ジャック・シンド, Jakku Shindo Jack Shindo?) is an Australian man who chosen by Ultraman Great to be his human host. He is portrayed by Dore Kraus in Ultraman: Towards the Future, the 1980s Australian Ultra Series.