Emperor Tiberius
From FEInfobase
Deranged ruler of the "Fallen" Terran Empire in an alternate universe. A hostile and evil person, Tiberius quickly rose thru the ranks in the old empire quickly establishing enough of a power base to eventually face the old Emperor and overthrow him. Kept young by serum distilled from the blood of the people of the planet Baku in his reality, Tiberius never accepted that his Empire eventually failed and fell to the Rebel Alliance of the Klingons, Cardassians and Bajorans. Thought Killed in attempted invasion of this reality in 2403 by mirror universe assassin Emel Kalain, his body vanished shortly threafter.