Similar word to quipster:

actor, banana, buffoon, card, clown, comedian, comic, cutup, droll, farceur, fool, funnyman, funster, gagster, humorist, jester, jokesmith, jokester, josher, kidder, life of the party, prankster, punster, second banana, stand-up comic, stooge, straight person, top banana, trickster, wag, wisecracker, wit, zany