Father is a title for a priest. A pastor is someone in charge of a church community. Minister is a generic term for one who practices a ministry. In the Catholic church a priest is the basic clergyman, he is usually adressed as Father sometimes followed by his name.
Who is the leader of the Protestant Church?
Martin Luther, often called the father of Protestantism, fundamentally changed the Christian world through his force of will and new ideas. He tried passionately to reform the Catholic Church.