8. GIOVANNI RIBISI AND MARIAH O'BRIEN
Ribisi, a character actor, is the twin brother of Marissa Ribisi, who is married to Beck. The twins were raised as Scientologists by their parents, Albert and Gay. Ribisi praises the religion for keeping him away from many Hollywood vices. Ribisi and O'Brien, now divorced, were married for three and a half years and have a daughter, Lucia. O'Brien is still officially listed as a Church of Scientology member and completed her most recent course of study in 2005. She attained the level of "Clear," which means a person has "been cleared of negative influences."