What is another word for "leader"?

Roget's Thesaurus (1911) lists these synonyms for "leader": abecedarian, accessory, adviser, advocate, antecedent, apostle, article, assistant, association, attorney, avant-courier, banco, bar, barrister, beagle, bear, bellwether, bencher, call, canvass, chalk, civilian, clergy, coach, commentary, commentator, consideration, consult, conveyancer, counsel, court, crammer, critic, criticism, critique, cursitor, dame, dawn, deal, delve.