Is it possible for me to use あの人は その人は この人は to address somebody (instead of using their name) who is beside me because i'm doing a presentation and i'm required to describe somebody but that person will also be there to describe himself. If it is possible which one is the most suitable? Or is there any other way to adress them
この人 etc are OK, but could sound a little too casual and intimate for to some extent formal situations. Basically, 彼 or 彼女 are safer in those cases.