“Mack” Patrick MacKenzie in season four. Then there was the Lisa Hartman/Michael Sabatino/Claudia Lonow storyline as Ciji, “Chip” and Diana on Knots Landing. And Gary’s drinkin ...

But it was Donna Mills as the alluring villainess Abby Cunningham, who joined the cast in season two, that sparked interest in Knots Landing. Her arrival resulted in scheming and conniving (a la J ...