William Devane Gregory Sumner Actor Kevin Dobson M. "Mack" Patrick MacKenzie Actor Stacy Galina Actor Michele Lee Karen Fairgate MacKenzie Actor Kathleen Noone Actor Michelle Phillips Anne W. Matheson Actor Larry Riley Frank Williams Actor Ted Shackelford Gary Ewing Actor Nicollette Sheridan Paige Matheson Actor Joan Van Ark Valene Ewing Gibson Waleska Actor Boyd Kestner Actor Felicity Waterman Actor Bruce Greenwood Actor Jerome Courtland Guest Star David A. Kimball Guest Star Vasili Bogazianos Guest Star Conni Marie Brazelton Guest Star Rhianna Janette Guest Star Michael Filerman Executive Producer David Jacobs Executive Producer Mary-Catherine Harold Producer Nicholas Sgarro Director Joel Okmin Writer