Character and personality development is essential in movies, TV and also in professional sports. This isn't done by PR people, it's more along the line of Directors and Managers.
There is a need for Public Relations too, however it would be best after the players had more guidance and direction related to their own personalities. No one ever became successful or even entertaining "acting like themselves," and this goes from the most famous actors all the way down to the PGA Golfers. Tiger Woods has been groomed and conditioned to be in the public eye, and most other super stars have as well.
Nothing on TV, or movies is literally "real," even reality TV has character development staff.