| chore boy |
| clerk |
| coadjutant(help, associate, subordinate, representative, assistant) |
| coadjutor(help, associate, subordinate, representative, assistant) |
| collaborator(help, associate, subordinate, representative, assistant) |
| colleague(help, associate, subordinate, representative, assistant) |
| commissionaire(noun, herald, mediator, envoy, runner) |
| confederate(help, associate, supporter, subordinate, representative) |
| cooperator(help, associate, supporter, subordinate, representative) |
| crier(noun, herald, mediator, envoy, runner) |
| cupbearer |
| delegate(noun, herald, mediator, envoy, runner) |
| delivery person(noun, expression, herald, mediator, envoy) |
| deputy(help, associate, subordinate, representative, assistant) |
| detachment(noun, herald, mediator, envoy, runner) |
| detail(noun, herald, mediator, envoy, runner) |
| dispatch-rider |
| dispatcher(noun, express, carrier, herald, mediator) |
| errand-boy |
| errand girl |