SOMEONE page Tom Cruise – his former friend and Scientolo-pal is slamming his beloved church.

Jason Beghe, a character actor best known for roles on TV’s “CSI,” “Numb3rs” and the now-canceled “Cane,” took to YouTube yesterday to slam his former religion.

Beghe, who was a member of the Church of Scientology for 13 years and was even featured in a promotional video for the church in 2005, now says, “Scientology is destructive and a rip-off.”

In the video, billed as a three-minute teaser to a longer interview that’s on its way, Beghe goes on to say, “It’s very, very dangerous for your spiritual, psychological, mental, emotional health and evolution. I think it stunts your evolution. If Scientology is real, then something’s [bleeped] up . . . It ain’t delivering what it’s promised. It sure has not.”

Beghe wasn’t just a peon in the church. The actor, who’s best friends with David Duchovny, spent a lot of money to make it to the coveted “OT 5” level achieved by Cruise, John Travolta and Kirstie Alley.

But Beghe now warns, “The further up the bridge, the worse you get . . . I don’t have an agenda. I’m just trying to help. I have the luxury of having gotten into Scientology and after having been in it, been out. And that’s a perspective that people who are still in and not out do not have.”

A rep for Scientology said, “There are millions of Scientologists around the world who will tell you of their daily wins in applying Scientology in their lives. One need only visit http://www.scientology.org to see this for yourself.”

Beghe’s salvo is the latest hit to Cruise’s controversial faith. Since the beginning of the year, several creepy videos of Cruise exhorting people to join Scientology and laughing maniacally have hit the Web – videos which the church demanded be taken down, to no avail.

Last month, a group calling itself “Anonymous” took credit for bombarding Scientology churches across the country with prank calls, bomb threats and cyber attacks.

And in February, more than 50 masked protesters gathered outside of the Boston headquarters of Scientology and demonstrated against the church wearing Guy Fawkes masks.