The daytime talk show host recently sat down with Herman-Walrond for a two-part episode of Dr. Phil, which airs Oct. 29 and 30.
"I think he's incredibly narcissist, this is something that is perverted at his core -- this is a core value thing for him," Dr. Phil tells ET's Kevin Frazier about 38-year-old Fogle. "When you listen to him, he's proud. This isn't something that was kind of eating away at him and he reluctantly gives in to impulses. He's proud of this. This is sport to him, this is something he really wants to do."
"I think this is a very sick individual," he adds.
In one of the audio tapes, Fogle is heard suggesting to Herman-Walrond, "What if we put a camera in your kids' room, would they be okay with that?" He also asks, "Are there any of your kids' friends that you think are pretty hot?"
Dr. Phil says the disturbing audio tapes are an opportunity for parents to look at "the anatomy of a pedophile."
"This is the playbook of the bad guy! This is the playbook of the evil person, which is why I was so interested in airing this," Dr. Phil explains. "Parents need to hear this because they're going, 'This is the anatomy of a crime.' They're going inside the head of an offender and seeing how he thinks, how he targets this individual, and how he grooms them into becoming a victim."
Herman-Walrond tells Dr. Phil during the sit-down that she initially met Fogle in 2006 while interviewing him on her local Florida radio show, and grew suspicious when Fogle mentioned that he was attracted to middle school girls. She says that she started up a friendship with Fogle with the intent of gathering more information, and claims Fogle continued to make comments about his sexual interest in children. Herman-Walrond says she spent five years secretly recording her conversations with Fogle to use as evidence against him.
"This guy is so narcissistic it never occurs to him that he's being played," Dr. Phil comments. "It never occurs to him that she could actually tell someone, and when you hear some of the things he says to her even about her own children, you are going to want to get up and kick the screen in."
Dr. Phil says he's especially sickened by Fogle, given his celebrity status.
"Of course, having dealt with pedophiles and child molesters, this is always something that sickens me, but when I see someone use any type of position, any type of celebrity, any type of authority to lure children, it just goes to a whole other level of offensiveness in my sensibility," he shares.
In August, Fogle agreed to plead guilty to allegations that he paid for sex acts with minors and received child pornography, according to court documents. His sentencing is scheduled for Nov. 19, and prosecutors are seeking a sentence of between five to 12 years in prison.