Ron Miscavige is the father of the Church of Scientology leader David Miscavige and former member for over 40 years. Author of the book "Ruthless: Scientology, My Son David Miscavige, and Me... Read allRon Miscavige is the father of the Church of Scientology leader David Miscavige and former member for over 40 years. Author of the book "Ruthless: Scientology, My Son David Miscavige, and Me".Ron Miscavige is the father of the Church of Scientology leader David Miscavige and former member for over 40 years. Author of the book "Ruthless: Scientology, My Son David Miscavige, and Me".