mediary

assistant broker commissioner deputy handler lawyer minister officer operative operator promoter representative worker

abettor actor advocate ambassador assignee attorney delegate doer emissary envoy executor factor factotum functionary go-between intermediary mover negotiator principal proctor proxy salesperson servant steward substitute surrogate

middleperson ten percenter

intermediary stand-in surrogate

alternate ambassador assignee attorney backup broker delegate deputy emissary envoy executor lawyer negotiator representative substitute