1. A computer program product comprising a computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device implementing a Question Answering (QA) system, causes the computing device to: receive an identification of a requested persona from a user; receive a natural language question input specifying an input question to be answered by the QA system; customize, in response to receiving the requested persona, components of the QA system to answer questions from a viewpoint of the requested persona; generate an answer to the input question from the viewpoint of the requested persona based on the customization of the components of the QA system; and output the answer to the input question in a form representative of the requested persona at least by re-formatting the answer utilizing a language style and word choice corresponding to the requested persona.