Tanner is one of hatches EMP experiment (not specific but eh). Tanner's electrical powers allow him to interfere with airplanes' electrical navigation systems and cause them to malfunction and crash. His powers are so advanced that he can do this from the ground. Tanner was imprisoned by Dr. Hatch for insubordination. In the series Tanner feels intense anxiety and guilt for all the innocent people he has killed and was rescued by the Electroclan in the Rise of the Elgen. He was killed in Fall of Hades by the Elgen.