Synonyms of 'changeling'

agent, alternate, alternative, analogy, backup, change, comparison, copy, counterfeit, deputy, double, dummy, equal, equivalent, ersatz, exchange, fake, fill-in, ghost, imitation, locum tenens, makeshift, metaphor, metonymy, personnel, phony, proxy, relief, replacement, representative, ringer, secondary, second string, sign, stand-in, sub, substituent, substitute, succedaneum, surrogate, symbol, synecdoche, token, understudy, vicar, vice-president, vice-regent