Currently in production on its second season, Hallmark Channel announced last night during its Winter TCA Press Tour event that "General Hospital's" <strong>Jack Wagner</strong> (ex-Frisco Jones) and <strong>Kristina Wagner</strong> (Felicia Jones) will join the cast as regulars in its original series "When Calls the Heart," set in a 19th century mining town and starring <strong>Lori Loughlin</strong> ("Full House," "Summerland"), <strong>Erin Krakow</strong> and<strong> Daniel Lissing</strong>.