SMALLVILLE star Allison Mack has recruited as many as 25 women into the terrifying NXIVM slave cult, according to the group's former publicist.

The actress has allegedly been brainwashed by cult leader Keith Raniere to recruit "slaves" into a secretive cult where they are forcibly branded with her initials and ordered to follow her commands 24 hours a day, Frank Parlato told Sun Online.

7 Actress Allison Mack is allegedly a high ranking member of the secretive NXIVM DOS cult Credit: Getty Images

The cult is called DOS, believed to be short for “dominus obsequious sororium" - Latin for the “master over the slave women”, and is the dark side of so-called "self-help" group NXIVM, according to Parlato - who was the first to lift the the lid on the cult's sordid activities on his website The Frank Report.

In one shocking email seen by Sun Online, slaves are told to fast for 12 hours a day, take cold showers and perform a "daily act to honour" their master.

The email tells followers they must refrain from eating for "12 hours from the last time you have anything other than water w. lemon or black tea w. lemon + honey (sparkling water is ok)"

7 Keith Raniere is allegedly the leader of NXIVM horror DOS cult Credit: YouTube

They must also take a cold shower to "build capacity for love through the tolerance of pain".

The email states that they must provide a new piece of "collateral" - what they call "C" - on the first day of every month - which can be published if the "slave" leaves the group or reveals its sordid secrets - in order to prove their loyalty.

The collateral is blackmail-worthy material such as nude pictures, videotaped confessions to crimes or financial information, according to Parlato.

7 Escaped cult members have told how they were pinned down and given this brand on their public area Credit: Frank Report

A screenshot obtained by Sun Online shows the "collateral" Dropbox along with the names of some of Mack's slaves.

They include India Oxenberg, the daughter of Dynasty actress Catherine Oxenberg who recently met with prosecutors in New York and presented evidence against alleged cult leader Raniere.

Doctor Danielle Roberts, who is currently being investigated by authorities in New York after allegedly branding some cult members with a hot iron on their pubic region, is also named on the screenshot.

Parlato claims that if they fail to follow Allison Mack's commands they are beaten with a paddle.

7 This screenshot apparently shows the secret 'dropbox' where 'slaves' are told to upload blackmail worthy material such as naked pictures Credit: Frank Palarto/ Frank Report

While Mack, who appeared as Clark Kent's sidekick in the TV show Smallville, is allegedly a "master" in the cult.

But she still must allegedly obey leader Raniere and is also ordered to find bed partners for him, run 40 miles a week and keep a strict diet to stay as skinny as possible.

Parlato told Sun Online: "Allison is both a victim and a perpetrator. She is a victim because she has been brainwashed by Raniere and she is his 'slave'

"So she has to run 40 miles a week and keep a strict 500 to 800 calorie a day diet.

"But she has also recruited many women to this cult.

"Before he had good looking women surrounding him somewhat but what she did is use her glamour and celebrity to take it up a notch.

7 Allison Mack was pictured jogging near the cult's headquarters in Albany, New York on Wednesday - she allegedly must run 40 miles a week Credit: Frank Palarto/ Frank Report

"She attracted a younger breed of women to the cult.

"At first I thought she was second in command of DOS but now I think she may be third in command.

"But ultimately it all boils down to Raniere - he is the master of all the women.

"One of things that is a terrible concept to Allison is that she is ordered to find Raniere bed partners and she is conflicted because she really wants to be with him.

"I've had women who have escaped the cult tell me that they are told to sleep with Raniere and Allison gets really jealous about it - and they tell her 'Look I'm doing what I'm told - I don't even want to have sex with him I'm forced to'."

7 The group's former publicist claims the brands include Keith Raniere's initials and the Allison Mack's Credit: Frank Report

NXIVM claims to be a self-help business that has helped thousands of people "reach their potential" through courses.

Parlato, who worked for the organisation for several months in 2007 until he was fired by Raniere for probing into his financial affairs, says NXIVM is bankrolled by millionaire heiresses Clare and Sara Bronfman, whose mum Georgiana is married to Brit actor Nigel Havers.

Clare Bronfman is the organisation's vice president of operations.

According to Vanity Fair, Raniere has "swallowed more than $150 million" of Bronfman's fortune.

"Without the Bronfman's money, there would be no slaves, no branding, no blackmail," Parlato claims.

"Bronfman money funds the whole horrifying cult."

Parlato is currently locked in a legal battle with both Raniere and the Bronfmans.

7 India Oxenberg is believed to be "trapped" in the cult Credit: Facebook

Sun Online put all the allegations to Mack's publicist who replied: "Allison is passing on all press inquires at this time."

Raniere has not yet commented.

Earlier Nxivm put out a statement saying: "The allegations relayed in the story are built upon sources, some of which are under criminal investigation or already indicted, who act as a coordinated group.”

They added: "We will explore any and all legal remedies to correct these lies."

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