THESAURUS
ringer
agent, alternate, alternative, analogy, backup, blagueur, bluff, bluffer, change, changeling, charlatan, comparison, copy, counterfeit, deputy, double, dummy, equal, equivalent, ersatz, exchange, fake, faker, fill-in, fourflusher, fraud, ghost, ghostwriter, humbug, imitation, impersonator, impostor, locum tenens, makeshift, malingerer, metaphor, metonymy, mountebank, next best thing, personnel, phony, picture, pinch hitter, portrait, poser, poseur, pretender, proxy, quack, quacksalver, quackster, relief, replacement, representative, reserves, saltimbanco, second string, secondary, sham, shammer, sign, simulacrum, spares, spit, spitting image, stand-in, sub, substituent, substitute, substitution, succedaneum, superseder, supplanter, surrogate, symbol, synecdoche, third string, token, understudy, utility player, vicar, vice-president, vice-regent
ROGET THESAURUS
ringer
Deceiver
N
deceiver &c (deceive), dissembler, hypocrite, sophist, Pharisee, Jesuit, Mawworm, Pecksniff, Joseph Surface, Tartufe, Janus, serpent, snake in the grass, cockatrice, Judas, wolf in sheep's clothing, jilt, shuffler, stool pigeon, liar &c (lie), story-teller, perjurer, false witness, menteur a triple etage, Scapin, bunko steerer, carpetbagger, capper, faker, fraud, four flusher, horse coper,
ringer, spieler, straw bidder, imposter, pretender, soi-disant, humbug, adventurer, Cagliostro, Fernam Mendez Pinto, ass in lion's skin, actor, quack, charlatan, mountebank, saltimbanco, saltimbanque, empiric, quacksalver, medicaster, Rosicrucian, gypsy, man of straw, conjuror, juggler, trickster, prestidigitator, jockey, crimp, decoy, decoy duck, rogue, knave, cheat, swindler, jobber, saint abroad and a devil at home.