Dallas (1978 TV series) ended in May 1991, J.R. was the only character to have appeared in every episode. The show was famous for its cliffhangers, including the "Who shot J.R.?" mystery. The 1980 episode "Who Done It" remains the second highest rated prime-time telecast ever. The show also featured a "Dream Season,” in which the entirety of season 9 was revealed to have been a dream of Pam Ewing. After 14 seasons, the series finale "Conundrum" aired in 1991. The show is mostly an ensemble cast, with Larry Hagman as greedy, scheming oil tycoon J.R. Ewing, stage/screen actress Barbara Bel Geddes as family
Ken Kercheval role as Cliff Barnes on the CBS television series "Dallas". He starred in the show from 1978 to 1991, from pilot episode to series finale. He initially was cast as Ray Krebbs before being given the role of Cliff Barnes. Kercheval and Larry Hagman were the only "Dallas" cast members to stay with the series throughout its entire run, although Kercheval's character was only a recurring character during the first two seasons. He became a regular cast member in the 1979-1980 season. Kercheval reprised the role of Cliff Barnes in the 1996 "Dallas" reunion, "J. R. Returns", and he appeared