For most of Leah Remini's life, she was a part of the Church of Scientology. But in 2013, she left the organization and has since been a vocal opponent to the church and its practices.
But Remini remains committed in outing the church for its abuse of power.
She admitted that there can be severe repercussions for speaking out, but after hearing the experiences of others who'd left the Church, she felt it was her obligation to be vocal.
"I was watching high executives, former executives of the Church leaving and speaking out about abuses and things that they've experienced while working for the Church, and I saw how the church reacted. I felt I had a responsibility to say, 'I'm not going to allow you to bully these people who were very brave to come out and tell their stories,'" she told Ellen. "And that's from executives. There are just average parishioners like me who leave and speak out about what they've experienced. They lose their family. The Church goes after their family to shun their family, oftentimes. I'm very lucky that that didn't happen to me. My family chose me."