Scientology famous members – from Kelly Preston and John Travolta to Tom Cruise and Leah Remini

SCIENTOLOGY has a raft of high profile followers.

Here's the lowdown on some of the secretive religion's most famous devotees.

Who are some of Scientology's famous followers?

Tom Cruise

Perhaps the most famous follower of L. Ron Hubbard's writings is Tom Cruise.

The Top Gun star became involved in the church in 1990 through his first wife Mimi Rogers.

In 2004 he said that: "It's a privilege to call yourself a Scientologist, and it's something that you have to earn."

Katie Holmes and Tom Cruise's third wife split over the religion in 2013.

Kirstie Alley

In the past, she has launched a defence of the church and fell out with one of it’s mostly famous defectors, actress Leah Remini, who’s gone on to be an outspoken critic of the controversial religion.

Kirstie Alley told The Howard Stern show: "First of all, I just want everyone to know I have hundreds of friends who have come into Scientology and left Scientology. You are not shunned, you're not chased. All that stuff's bulls***.

"When you're generalising and when your goal is to malign and to say things about an entire group… when you decide to blanket statement that Scientology is evil, you are my enemy."

Elisabeth Moss

Hand Maiden's Tale star Elisabeth Moss was born in Los Angeles, California and was raised as a Scientologist.

She is such a prominent figure within the faith that at one stage she was said to have been lined up as a wife for leading fellow Scientologist Tom Cruise after his divorce from Katie Holmes.

She said Scientology helped her get over her acrimonious split from "Saturday Night Live" actor Fred Armisen.

Leah Remini

Leah Remini is a 46-year-old American actress best known for her roles in The Kings of Queens.

She became a member of the Church of Scientology when she was introduced by her mum at the age of eight.

Leah left the religion in her 40s and released a book titled Troublemaker: Surviving Hollywood and Scientology.

She has since become a vocal critic of the faith.

John Travolta

John Travolta has been a practitioner of Scientology since 1975 after he was given the book, Dianetics: The Modern Science of Mental Health by L.Ron Hubbard, while on a film set.

In December 2016, he told E! News: "[Scientology has] been nothing but helpful to me for 40 years, through all my losses of my mother, my girlfriend, my son. They never left my side, so why would I want buy into something that's not what I feel?"

Juliette Lewis

Juliette Lewis, an actress best known for her role in Natural Born Killers, is a second generation Scientologist.

Her father, the actor Geoffrey Lewis, was a long-time member of the church.

As a teen, she began using marijuana and moved on to cocaine.

She credits her religion with helping her lead a drug-free life today, saying, “Scientology keeps me rooted and grounded—it's been an amazing force in my life.”

What is Scientology?

Scientology is based on the teachings of American science fiction writer L. Ron Hubbard.

According to their official literature: “Scientology is a religion that offers a precise path leading to a complete and certain understanding of one’s true spiritual nature and one’s relationship to self, family, groups, Mankind, all life forms, the material universe, the spiritual universe and the Supreme Being.”

Did Kelly Preston have cancer treatment?

John Travolta announced "with a very heavy heart" that his wife Kelly Preston died aged 57 after a secret two-year battle with breast cancer.

A representative for the Travolta family told that Kelly had been undergoing cancer treatment for “quite some time” and that she chose to keep her battle private.

"Kelly's love and life will always be remembered. I will be taking some time to be there for my children who have lost their mother, so forgive me in advance if you don't hear from us for a while," husband John .

He went on to thank "her doctors and nurses at MD Anderson Cancer Center" as well as