M
M is the Head of the Secret Intelligence Service.
See the introduction here
Q
Q (standing for Quartermaster), like M, is the head of Q Branch (or later Q Division), the fictional research and development division of the British Secret Service.
See the introduction here
MISS MONEYPENNY
Miss Moneypenny is the secretary to M.
See the introduction here
BILL TANNER
Bill Tanner is MI6’s Chief of Staff.
See the introduction here
CHARLES ROBINSON
Charles Robinson is the Deputy Chief of Staff at MI6 in the Pierce Brosnan Bond films.
See the introduction here
SMITHERS
One of Q’s assistants.
See the introduction here
00 AGENTS
The 00 Section of MI6 is considered the elite of the Secret Service.
See the introduction here