Mark is close friends with his former on-screen sister Jocelyn Seagrave, who played "Julie" on Guiding Light. She even set him up on his first date with wife Alecia, who is also an actress.
Mark: I'm a big optimist. Negative thinking is such a waste of time. I have a friend who's a real pessimist. I said to him once, 'You know what your problem is? Your glass is always half empty.' And he said, 'No it's not. It's just not big enough.' My God, that is the ultimate pessimist. Some people feel the need to worry. I don't. Maybe I'm irresponsible, but I just refuse to deal with things like that. Why worry?
Mark: I'm an Irish Catholic boy. I go to church every Sunday; I always have. There was a time when I'd go just to watch a certain girl I liked, or because it was only an hour out of my life, or whatever. But I started listening and believing and it helped a lot; it gave me a great deal of confidence.