In an interview with Digital Journal, McCartney recalled that his dialogue-heavy soap work was "not fun." He added:
All My Children certainly was a huge lesson for me in terms of learning the material, being quick, studying your lines, and not procrastinating. Soap opera actors don't get the credit they deserve. I work with an actor named David Canary, who RIP, was one of the sweetest guys on the planet and he was such a kind soul. He played my father, Adam Chandler, and not only was he the star of the show but he played his own twin brother, Stuart.
He had double the lines of any character on the show, and in my three years on the show, he never messed up a line even once. There was a time when David helped me when I was having a moment and I struggled with remembering my lines, so as a result, the soap world for me is very sentimental. Learning lines has now become something that I am good at because of that show and that moment. It takes a lot of practice.