I wonder if this is post crack-possession arrests or if it was before.
He’s dead now, but Fred Rerun Berry of WHAT’S HAPPENIN’ was a minister in a Baptist sect that’s closer to Pentecostalism than mainstream Baptist. (He was also married four times and the father of several children for whom he did not pay support; he was tricked into an appearance on the Sally Jessie Raphael show that he thought was a “70s nostalgia” theme but was actually a confrontation with one of his sons- the reason there are no quotation marks around Rerun, incidentally, is that he legally changed his name.)
Lulu (the heavy singer from Hee-Haw) is a major league Fundie who appears at extremely conservative churches. Anita Bryant is of course an extremely famous Fundie entertainer (who has basically screwed every business partner and employee she has had in the past 20 years, but God forgives her).
Ralph Waite (the father from The Waltons) is a very conservative Republican who has run unsuccessfully for office and is an ordained minister (he performed the marriage for two of his TV children). He is also multiply divorced.
Andy Griffith (a uniquely unpleasant fellow offstage) is devoutly and very conservatively religious; I’m not sure if he’s a Fundie exactly, but he’s not far off the mark.
Ann B. Davis (Alice from The Brady Bunch) has lived with her pastor and his wife for more than 20 years. Officially Methodist, the minister is really more like a mini-cultleader (many of whose congregation members are celibate gays).
On the non-Christian front, Cat Stevens, Muhammad Ali and Kareem Abdul Jabbar are devout Muslim converts.
I believe that Leif Garrett recently became a born-again Christian. I don’t know how sincere or Fundie he is.
One of the most famous incidences of a celebrity becoming devoutly and Fundamentally religious was Larry Flynt, though it didn’t last long and he now ascribes it to an undiagnosed and unmedicated bipolar disorder.
Patrick McGoohan (best known as The Prisoner) is an extremely conservative Catholic who named his production company Everyman after the medeival morality play.
Ben Stein, though Jewish, is extremely conservative in his religious views and a major pro-Life speaker and advocate.