(n.) One who caricatures.

architectural draftsman banana burlesquer cartoonist clown comedian comic crayonist cutup delineator draftsman drawer epigrammatist funnyman gag writer gagman gagster humorist ironist jester joker jokesmith jokester lampooner madcap parodist pastelist prankster punner punster quipster reparteeist satirist wag wagwit wisecracker wit witling zany