Charlie McCarthy
agent
ancilla
appeaser
appliance
arbiter
arbitrator
broker
conciliator
connection
contact
contrivance
creature
deputy
device
distributor
dummy
dupe
entrepreneur
front
front man
go-between
handmaid
handmaiden
implement
instrument
interagent
interceder
intercessor
intermediary
intermediate
intermediate agent
intermediator
intermedium
internuncio
interpleader
intervener
interventionist
interventor
jobber
judge
lever
liaison
link
mechanism
mediary
medium
middleman
midwife
minion
negotiant
negotiator
treater
diplomat
harmoniser
harmonizer
interpreter
make-peace
marriage broker
matcher
matchmaker
mediatrix
moderator
pacifier
peacemaker
reconciler
second hand
translator
mean
median
mediate
mediation
mediatorial
mediatorian
mediatorship
adviser
benefactor
confessor
confidant
cytokine
helper
hormone
inhibitors
mentor
pacificator
protector
regulator