Hermes, Mercury, Pheidippides, ancestor, announcer, antecedent, avant-garde, bellwether, buccinator, buccinator novi temporis, bushwhacker, commissar, commissary, commissionaire, commissioner, courier, delegate, emissary, envoy, explorer, forebear, foregoer, forerunner, foreshadower, front runner, frontiersman, fugleman, go-between, gofer, groundbreaker, guide, harbinger, herald, innovator, intermediary, lead runner, leader, legate, minister, nuncio, page, pathfinder, pioneer, point, precedent, precursor, predecessor, premonitor, presager, runner, scout, secretary, stormy petrel, trailblazer, trailbreaker, vanguard, vaunt-courier, voortrekker