Donald Kessler is a minor character in Mars Attacks! and the rival of Jason Stone. He is a brilliant scientist and lover of Natalie Lake,even being an important guest on her TV show.,where she falls for him. He studied the Martians' anatomy and affirmed that they could be peaceful creatures made of carbon with the gift of reading minds potentially. Donald was usually smoking with a long pipe. He also added Dr. Zeigler on the projection of the tradutor computer. During the second contact the Martian Ambassador in his peace speech, unleashing slaughter in the Congress, he was captured and quartered in the Mother Ship ,leaving only his head animated. Donald appearantly died with Natalie and Poppy when the Mother Ship sank in the ocean. He also said that the Martians were highly advanced in tecnology.