Mark Rathbun
Mark C. "Marty" Rathbun (born 1957) is a former senior executive of the Church of Scientology who last held the post of Inspector General of the Religious Technology Center (RTC), the organization that is responsible for the protection and enforcement of all Dianetics and Scientology copyrights and trademarks.As the inspector general, Rathbun led the RTC's international Inspector General Network, collectively responsible for internal maintenance and consistency of Scientology's practices and procedures in its organizations, and for ensuring perfect adherence to all Church policies as attributed to Scientology founder L. Ron Hubbard.
Rathbun left the Church of Scientology in 2004 and became an independent Scientologist, later stating that he considers himself non-religious.
Since 2016, Rathbun began criticizing former church members on his blog. He has also spoken out against prominent critics of Scientology, prompting speculation that he may have returned to the Church. Provided by Wikipedia