Scientology is
a religious system based on the seeking of self-knowledge and spiritual fulfilment through graded courses of study and training. It was founded by American science fiction writer L. Ron Hubbard (1911–86) in 1955.
Scientologist believe that people are immortal alien beings called thetans. These being are believed to forget their true nature. Although Scientology is legally recognized as a religion, it is one of the most controversial religious practices of our time.
The following celebrities have openly admitted believing and following the practices of Scientology.