Sab Than as he appears in World of Mars
In A Princess of Mars Sab Than meets Dejah Thoris when she arrives at Zodanga and falls madly in love with her. He demands her hand in marriage which she accepts, but Dejah Thoris doesn't love him she just wants to marry him so that the wars between Zodanga and Helium will come to an end and there will be peace. At this time, Dejah Thoris believed her true lover John Carter to be dead.
Sab Than and Dejah Thoris had their wedding on the same day the Tharkians invaded Zodanga, but the wedding was crashed by John Carter who would not let his love marry Sab Than. John Carter prevented the wedding from occuring, until Tars Tarkas arrived and killed Sab Than because due to Martian custom, John Carter could not kill Sab Than.
Sab Than is portrayed by Dominic West in the 2012 Disney movie John Carter. Sab Than kills his father and becomes jeddak of Zodanga, he later fights John Carter when he comes to Zodanga to free Dejah Thoris. John Carter tried to get Sab Than to tell him about the Holy Therns but Matai Shang killed Sab Than so he wouldn't tell John Carter about their plans.