7. Jeffrey Tambor
Jeffrey Tambor is best known for his role in Arrested Development as George Bluth. In 2007, he was reported to be a member Scientology. However, in 2008, he went public with the intention of dispelling the rumor. Tambor stated that he, at one time, took Scientology classes and went on to study the church, but that was no longer the case.
He said that while he has nothing against the organization, he no longer considers himself a Scientologist. This seems to be an odd statement considering that he was never officially a member of the church in the first place.