I think it's been overlooked that a lot of celebs who are not Scilons are also cult members of so-called “churches”.
Soka Gakkai International (a cult-like faction of Buddhism which the Dalai Lama does not recognize): members include Tina Turner, Orlando Bloom, Patrick Duffy, Herbie Hancock, John Astin (aka Gomez from 'The Addams Family'), and activist Marianne Pearl whom Angelina played in 'A Mighty Heart'.
Jehovah's Witnesses: you know, the ones that come up to your door all the time. Members include Katherine and Rebbie Jackson (mother and eldest sister of Michael, Janet, LaToya, etc.), Ja Rule, rerrence Howard, Serena and Venus Williams, Prince, Jill Scott, Naomi Campell, the Wayans family, George Benson, Lark Voorhies, Geri Halliwell, and Larry Graham (of Sly & the Family Stone and Graham Central Station).
Born Again-Christians: Christians, yes but very cult-like. Members of various born-again churches include: Jane Fonda, Gary Busey, Dyan Cannon, Denise 'Vanity' Matthews, BD Hyman (Bette Davis's daughter), Kurt Warner, Willie Aames, Perri 'Pebbles' Reid, Janice Holyfield (Evander's ex-wife), and George Foreman.
Christian Scientists: the Scientology of Hollywood's older set. Members include: Doris Day, Val Kilmer, Carol Channing, Robert Duvall, Georgia Engel (Georgette from 'The Mary Tyler Moore Show'), Peter Horton (from 'Thirtysomething'), Mike Nesmith (of The Monkees), Jean Stapleton, Alfre Woodard, and Alan Young (Wilbur from 'Mr. Ed').
Mormons: need I say more? Members include: Donny and Marie Osmond (and their siblings), Katherine Heigl, Julianne and Derek Hough (from 'Dancing with the Stars'), Lacey and Benji Schwimmer (from 'So You Think You Can Dance', Lacey is currently on DWTS), Aaron Eckhart, Gladys Knight, David Archuleta, Jared Murillo (from the boy band V Factory), Glenn Beck, Jon Heder, Ken Jennings (all-time Jeopardy champ), Pat Priest (aka Marilyn Munster), Kaycee Stroh (from the 'High School Musical' movies), Johnny Whittaker (60s child star), Brendon Urie (lead singer of Panic at the Disco), Rick Schroder, Brandon Flowers (lead singer of The Killers), and Wilford Brimley.