Actor Josh Charles' exit seemingly comes out of nowhere, since the show managed to keep this completely under wraps. But it actually has been in the works since Season 4, when Charles asked to leave the show.
In the above video, Charles explains that he felt it was time to move on. "There's been a lot of people that have asked me what the reason is why I wanted to leave the show. I thought that I felt however much that I enjoyed the experience, that I was ready for the next chapter in my life, both creatively and personally," says Charles.