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Chris Masterson

Raised as a Scientologist along with his actor-brother Danny, Christopher Masterson hasn’t really talked much about it. But the former “Malcolm in the Middle” actor, 32, did bring his more-famous girlfriend, Laura Prepon, into the religion during their nearly decade-long relationship.

Celebrity Scientologists

From Tom Cruise to John Travolta, check out the many stars who are members of the Church of Scientology.