Pertwee's Peril

Your life was in peril nineteen years ago when you died of a heart attack.
You've been dead for many years and sadly, you will not be coming back.
You starred as the third Doctor in Doctor Who.
That TV show became much better because of you.
You starred as the Doctor from 1970 to 1974.
People were sad when you quit because you wouldn't be the Doctor anymore.
When I ordered a Doctor Who episode that you starred in, you were still alive.
But when I received it ten days later, people were sad because you didn't survive.
Besides being the Doctor, you had many other acting roles during your fabulous career.
You haven't been forgotten even though you've been dead for nearly twenty years.