Prefect Zevron was a leader on the Needle.
His family was part of a rebellion against the Imperial Family. Her mother was executed for treason, but the Family was overthrown. He swore to make sure all of the Family was dead, so when he discovered that the baby Miranda had been spirited away to 20th century Earth, he followed to kill her and end their blood feud. He failed and was killed, with his brother Ferran taking over his position. (PROSE: Father Time)