go between (?.)
- Charlie McCarthy
- Hermes
- Iris
- Mercury
- Paul Revere
- Pheidippides
- agent
- allegorist
- ancilla
- annotator
- appliance
- arbitrator
- broker
- carrier
- cicerone
- clarifier
- commentator
- commissionaire
- connection
- contact
- contrivance
- courier
- creature
- critic
- cryptanalyst
- cryptographer
- cryptologist
- decoder
- definer
- demonstrator
- demythologizer
- deputy
- device
- diaskeuast
- diplomatic courier
- distributor
- dragoman
- dummy
- dupe
- editor
- emendator
- emender
- emissary
- estafette
- euhemerist
- exegesist
- exegete
- exegetist
- explainer
- explicator
- exponent
- expositor
- expounder
- express
- front
- front man
- guide
- handmaid
- handmaiden
- hermeneut
- implement
- instrument
- interagent
- interceder
- intercessor
- intermediary
- intermediate
- intermediate agent
- intermediator
- intermedium
- internuncio
- interpleader
- interpreter
- intervener
- interventionist
- interventor
- jobber
- lever
- lexicographer
- liaison
- link
- mechanism
- mediary
- mediator
- medium
- message-bearer
- messenger
- metaphrast
- middleman
- midwife
- minion
- mouthpiece
- negotiant
- negotiator
- negotiatress
- negotiatrix
- nuncio
- ombudsman
- oneirocritic
- organ
- paraphrast
- pawn
- plaything
- post
- postboy
- postrider
- puppet
- runner
- scholiast
- servant
- slave
- spokesman
- spokeswoman
- stooge
- textual critic
- tie
- tool
- toy
- translator
- vehicle
- wholesaler
