John Ritter's widow Amy Yasbeck talks to him every day.

The actor died hours after suffering an aortic dissection, when the body's main artery tears, on the set of 8 Simple Rules, one week before his 55th birthday on September 11, 2003, and his wife of four years tries to do everything she can to keep his memory alive.

Actress Amy, 64, told the New York Post's Page Six: "I still talk to John. I check in all the time. … I talk to him every day."

The Pretty Woman star and John's three children, Jason, 46, Tyler, 41, and Carly, 44, whom he had with his first wife, 77-year-old actress Nancy Morgan, connect over things they think he would have loved, be it a "new comic comes on the scene, or there's physical comedy".

Amy added that those moments feel "like John is with us or beside us when we're watching something entertaining".

She continued: "John was such a good audience. He loved being on stage. He loved to be in an audience."

The Problem Child entertainer, who met John while working on the 1990 comedy-drama, revealed that seeing her late spouse be a dad to his children is what she misses most about him.

Amy, who had son Noah, 27, with John, shared: "That encompasses everything. His humanity, his comedy, his empathy, his frustration at the world."

The Mask alum told how "very fair-minded" and "progressive" John got annoyed when people, particularly children, were treated unfairly.

She said: "It would piss him off. I mean, for the world, but also for his kids. Like, what are we doing?"

"So him as a father encompassed everything about him."

People still approach Amy to share how much John meant to them, 20 years after the Three's Company legend died.

She said: "He really affected people that way."

Jason recently said he still turns to his dad John for advice.

In August, he told the Joy 101 podcast: "I go, 'I need you in this corner right here, dad,' and I just sort of sit him down and talk to him.

"There's so much about this world that's such a mystery, and whether he's out there somewhere, or I know him so well that he's within me somewhere, it doesn't matter. I know him.

"There are times where I can ask him a question that I don't necessarily know the answer to, and I filter it through what I knew about him as a father and as a person, and I can kind of guess what he would say."