None of these were billed as a possible saving grace for Dallas. There was so much hype surrounding PP's arrival and that of Christopher Atkins.
Apparently they were going to be the faces to change Dallas and pick it up out of the depths.
Also, Keel and Smith and Ferrer were hired by DALLAS to be actors -- to play characters integrated in with the
other characters. Not so much on DYNASTY, where it was shameless stunt-casting (even Philip Capice said in 1984 he hoped DALLAS was "never reduced" to that).
Not that major stars can't be brought into a show and used legitimately, but on DYNASTY it reeked of "oh, look who we've got now!"
In addition, DALLAS' Keel and Smith and Ferrer were stars of a certain ilk, established actors with a certain level of experience and name value, but they weren't iconic in the way DYNASTY's Hudson, Heston, Stanwyck or Billy Dee were (or, for that matter, their ideal wish list stars like Elizabeth Taylor, Sophia Loren, Cary Grant or Raquel Welch -- who all said "no!").
And when DALLAS
did brazen stunt casting near the end -- with daytime maven Susan Lucci and I-Dream-of-Barbara-Eden -- it also didn't work.
People can tell when a legendary star is brought in for valid narrative reasons (which may also achieve publicity and a ratings bump) and when they're brought in
just to achieve publicity and a ratings bump.
John Forsythe said circa 2000, that it's all well and good to have beautiful sets and clothes and great stars, but "
we need stories."
That's why the hiring of Lana Turner for six episodes of FALCON CREST was so effective: they had a role for her, one who had a resonate backstory history that affected the present (and FC was still good at the time). Another icon well-used was Ava Gardner on KNOTS LANDING.
The perverse irony of DYNASTY was that the producers were
all for that kind of icon stunt casting, but they didn't quite pull it together -- those sloppy bastards.