Leah Remini isn't on a mission to take down Scientology and superstar Tom Cruise -- and we can't blame her, this stuff is scary!

The television actress sat down with 20/20 and talked about her shocking and controversial departure from the religion in 2013.

Leah, who has her own reality series Leah Remini: It's All Relative on TLC, spoke of what it meant to go against one of the major faces of the religious. "Being critical of Tom Cruise is being critical of Scientolgy itself. You are evil," said the former King of Queens star.

She also says that leaving the religion, which is often referred to as a cult, was "giving up everything you've worked for your whole life."

The 45-year-old said she left the church because she didn't want to raise her daughter, Sofia Bella Pagan, as a Scientologist.

ABC only released a brief clip of their upcoming interview -- but we can't wait for the rest of it!