What is another word for "minister"?

Roget's Thesaurus (1911) lists these synonyms for "minister": ablegate, accoucheur, accoucheuse, accountant, accredit, acting, agency, aid, almoner, along, alter, answer, appear, archon, assistance, banker, bearer, behalf, brief, bursar, bursary, cambist, cash, cashier, champion, chancellor, changer, commissioner, conducive, consul, crook, delegate, depositary, deputy, dint, director, ego, eight, eleven, expedient.