Maecenas, accessory, accomplice, accomplice in crime, actuator, admirer, advocate, aficionado, angel, animator, apologist, backer, buff, cajoler, champion, coax, coaxer, coconspirator, cohort, confederate, conspirator, defender, dependence, encourager, endorser, energizer, exponent, fan, favorer, fellow conspirator, firer, friend at court, gadfly, galvanizer, impeller, inducer, inspirer, lover, mainstay, maintainer, mover, moving spirit, paranymph, partisan, patron, persuader, pleader, prime mover, promoter, prompter, protagonist, reliance, second, seconder, sectary, sider, socius criminis, spark, spark plug, sparker, sponsor, stalwart, standby, stimulator, support, supporter, sustainer, sympathizer, tempter, upholder, votary, well-wisher, wheedler