Who will become the new leader of Hezbollah after Hassan Nasrallah's death? Hezbollah has given no indication of who might succeed Hassan Nasrallah, but his cousin Hashem Safieddine, the cleric and senior Hezbollah official, has long been regarded as the heir apparent. More information about the man who could now be in charger with Nacim Benmammar and Nicholas Rushworth.