Kirk Cameron discovered religion as a teenager, but sadly, his newfound beliefs caused problems on the set of "Growing Pains." The star demanded that scenes be rewritten to reflect his conservative values and even had one co-star fired when he learned she'd once posed for Playboy. The actress was replaced by Kirk's real-life girlfriend, Chelsea Noble, whom he wed in 1991. They now have six children: four adopted and two biological. The born-again Christian turned his attention to evangelical missions later in life. He co-founded The Way of the Master ministry and left Hollywood behind to work on faith-based projects, like a 2005 film adaptation of the "Left Behind" series.