Not physically, obviously. As in acting abilities or roles they've chosen.

Tyler Perry used to be my favorite actor when he starred in the Madea series of films and plays but when he made the movie Alex Cross I could tell that Tyler Perry was heading in a new direction and gone were the funny movies of Tyler Perry and my interest in Tyler Perry went downhill. A second actor I used to like was Patrick Dempsey when he made good movies but ever since he's gone from Grey's Anatomy Patrick Dempsey also went downhill for me when he stopped making great movies and now is focusing on dramas
Bestie

Tyler Perry used to be my favorite actor when he starred in the Madea series of films and plays but when he made the movie Alex Cross I could tell that Tyler Perry was heading in a new direction and gone were the funny movies of Tyler Perry and my interest in Tyler Perry went downhill. A second actor I used to like was Patrick Dempsey when he made good movies but ever since he's gone from Grey's Anatomy Patrick Dempsey also went downhill for me when he stopped making great movies and now is focusing on dramas
Bestie

Considering there's been multiple Madea movies since he played Alex Cross, and one in production, sounds like Tyler hasn't gone in a new direction.

Julia Roberts
Sally Field
Ashley Judd
Natalie Portman
Susan Sarandon

All used to be good but the movies they choose now are horrible.