sentences:  The next year, Draal appeared to Captain John Sheridan and put the Great Machine at the disposal of Sheridan and his allies in the fight against the Shadows.Louis Turenne was unable to reprise the role of Draal, so John Schuck was selected to play the role of Draal.The difference in appearance between the two men was explained by having the Great Machine restore Draal's health and appearance, making him appear 30 years younger.