Larry Hagman was briefly replaced by Donna Reed for the 1984–1985 season, before Bel Geddes returned in better health for the 1985–1986 season. By the end of its 14th season in 1991, ratings had slipped to the extent that CBS decided to end "Dallas". Hagman was the only actor to appear in all 357 episodes. He had also made five guest appearances on the "Dallas" spin-off series "Knots Landing" in the early 1980s. Some years after "Dallas" ended, Hagman appeared in two subsequent "Dallas" television movies: "" in 1996, and "" in 1998. Hagman reprised his role as J.R. Ewing in TNT's
Dallas (1978 TV series) (season 12) main character Pamela Barnes Ewing, and Jenna Pangburn appears in two episodes as Pamela Rebecca Cooper, a character played by Deborah Kellner in the 1996 television film "" and Julie Gonzalo in the 2012 "Dallas" revival series. Returning writers include showrunner Leonard Katzman, Mitchell Wayne Katzman, Arthur Bernard Lewis, and Louella Lee Caraway, and they are joined by Howard Lakin, who wrote several episodes for seasons 4-6 plus newcomers Simon Masters and Jonathan Hales. Series star Larry Hagman (J.R.) is billed alongside Leonard Katzman as executive producer, while Howard Lakin is the show's new producer. Cliff Fenneman, having served as