This handsome, dependable actor achieved that television rarity – starring on two very different and equally popular TV series – first, as older brother and patriarch Charlie to the orphaned Salinger clan on Fox’s family drama “Party of Five” (1994-2000), and a decade later, as cool-under-pressure Dr. Jack Shephard, one of several marooned plane crash survivors on ABC’s adventure drama “Lost (2004- ). On both shows, Fox exuded a natural calm and confidence whenever chaos loomed, bringing the former model-turned-actor a loyal fan base of women smitten with his scruffy looks, as well as men