What Indian? Do you mean Iron Eyes Cody?
NO
Roy Rogers was a chidrens matinee idol in the 1940's/50's,usually known as the 'King of the Cowboys'.He starred in 88 films.
Yes, he did. http://en.wikipedia.org/wiki/Trigger_(horse)Not at first. He later bought Trigger for $2500 paying a little at a time.
His dog was named Bullet.