Actress Juliette Lewis became a Scientologist in the 1990s and credits the church's rehab program Narcanon with helping get clean.
She's quoted on its website as saying:
"I am no longer stuck in the bottomless pit of despair and apathy. Having achieved the state of Clear is the single most important thing that I've done for myself. It has allowed me to experience life in a way I only imagined."
Photo by Getty Images Jul 4, 2012