Although Larry Hagman appeared in seven episodes of season two, he actually died during filming of the fifth episode. The producers managed to keep J.R. "alive" for two more episodes by re-writing the script and stretching the footage he filmed out with the help of some dialogue re-used from earlier episodes.
The sudden death of Larry Hagman meant that there was no death scene filmed for J.R. Producers then went through every bit of footage filmed with Hagman, as well as every piece of recorded audio to find suitable pieces to use. The final shot of Hagman was taken from an un-used scene in an earlier episode where J.R. finds out that John Ross and Pamela are sleeping together. It was originally filmed on SouthFork, but the background was digitally removed and replaced with the red background of the hotel room in which J.R. was killed.
Mitch Pileggi (Harris Ryland) appeared on Dallas (1978) playing two different characters: a Cowboy in a bar, and "Morrisey". Brenda Strong appeared in the tenth season of the original series, playing "Cliff's One Night Stand".
With the beginning of season three, the show's opening credits properly adopted the style of credits from Dallas (1978), displaying three images of each of the main actors and actresses along with their names.
This was Larry Hagman's final acting project. He died during the middle of the filming of season two episode five. Hagman's character (J.R. Ewing) appeared in the first seven episodes, but the character was killed off because of Hagman's death in real-life.
Jordana Brewster and Julie Gonzalo are Latina. Brewster was born in Panama City, Panama and Gonzalo in Buenos Aires, Argentina. Only Brewster has a Latina role on this show, though; Gonzalo plays a non-Latina American.
Before the series entered development, there was a rumor that a big screen adaptation was in the works with John Travolta and Ben Stiler were considered for the role of J.R Ewing and Jennifer Lopez and Jessica Simpson being considered for the role of Sue Ellen. Bill Paxton was considered to play Cliff Barnes, while Owen Wilson was in the running for the role of Bobby Ewing.