List of characters whom Dexter planned to kill and could have killed, but chose to spare (includes Santos Jimenez, Arthur Mitchell, Travis Marshall and Oliver Saxon even though he later killed them). Although Hector Estrada was set free by Dexter, it was not done to spare him, but to bring him to a safer location, where he could kill him and avoid being caught by Maria LaGuerta and her crew - this failed, as Estrada managed to escape, but Dexter later tracked him down and killed him.