text: Season 8 saw Howard Keel promoted to the star cast after appearing since season 4 as wealthy, occasionally hot-tempered rancher Clayton Farlow, Miss Ellie's husband following Jock's death, and of Priscilla Beaulieu Presley as Bobby's teenage sweetheart Jenna Wade, who gives birth to Bobby's only biological child, Lucas, and eventually becomes Ray's second wife. Jenna had previously been played by Morgan Fairchild for a season 2 episode, and Francine Tacker for two episodes in season 3 before the role was permanently taken over by Presley in season 7. Donna Reed also joined the main cast during season 8, temporarily portraying Miss Ellie until Barbara Bel Geddes returned in the following year.
  Dack Rambo, portraying wandering cousin Jack Ewing, was promoted to regular status for season 10, after having appeared regularly since the end of season 8. However, he was written out of the show midway through the tenth season. Jack's sister Jamie Ewing Jenilee Harrison appeared in season 8. Jack's ex-wife April Stevens Ewing, played by Sheree J. Wilson, first appeared during seasons 10 and 11, before being promoted to a main character for season 12. Originally a scheming character, April eventually became Bobby's second wife after his divorce from Pam.