Who were the guards of the Messenger of Allah, may Allah bless him and grant him peace?

The Prophet, peace and blessings be upon him, was guarded by a number of companions on various occasions, including: Abu Qatadah al-Ansari, al-Adhra' al-Aslami, Abu Rayhanah, Abu Bakr al-Siddiq, Abu Ayyub, Sa'd ibn Abi Waqqas, 'Abbad ibn Bishr, Muhammad ibn Maslamah, Bilal, 'Abdullah ibn Mas'ud, al-Mughirah ibn Shu'bah, al-Zubayr ibn al-'Awwam, Marthad ibn Abi Marthad al-Ghanawi, and Dhakwan ibn 'Abd Qays.