Terri (Hour One)
From Tardis Wiki, the free Doctor Who reference
Terri worked for the Lesser Order of Oberon and scheduled what contracts an assassin could take on. She desired control of the group (PROSE: Out of Time) and sent "literal Death" after Doom, leaving her 24 hours to find the Doctor before she'd die. (WC: Meet Doom - the Universe's Greatest Assassin!)
