He played the good guy, which on a soap opera can often be forgettable, but he was far from that as he brought depth, passion and humanity to the part that lesser actors would not have been able to do. In fact he brought those qualities to every role he played.
Tom O'Rourke passed away in 2009, so we will not be able to stumble upon any new performances as we flip through the TV channels. But we can thank God for reruns as I still quite often catch some of his past work on television.
He is survived by his wife, Marcy, who keeps a blog about her memories of him called Thomas O'Rourke An Actor's Life, and it really gives a great insight to the life of a working actor. Here is a link.