| emissary(substitute, representative, operative, manager, alternate) |
| envoy(substitute, representative, operative, manager, alternate) |
| executor(substitute, representative, operative, manager, alternate) |
| factor(representative, operative, manager, deputy, mediator) |
| factotum(representative, operative, manager, deputy, mediator) |
| functionary(representative, operative, manager, deputy, mediator) |
| handler(representative, operative, manager, deputy, mediator) |
| jobber |
| lawyer(substitute, representative, operative, manager, alternate) |
| liaison |
| medium |
| middleman |
| middleperson(representative, operative, manager, deputy, mediator) |
| minister(representative, operative, manager, deputy, mediator) |
| mover(representative, operative, manager, deputy, mediator) |
| negotiator(substitute, representative, operative, manager, alternate) |
| officer(representative, operative, manager, deputy, mediator) |
| operative(representative, manager, deputy, mediator) |
| operator(representative, operative, manager, deputy, mediator) |
| principal(representative, operative, manager, deputy, mediator) |