Joan Van Ark and Ted Shackelford will reportedly return to Dallas in the revived series' second season.
Shackelford and Van Ark starred in the original Dallas spinoff Knots Landing as Gary Ewing and Val Ewing respectively from 1979 to 1993.
The duo will revive their popular characters for a three-episode arc when Dallas returns to TNT early next year, reports TV Guide.
Gary and Val last appeared in Southfork during the original Dallas series finale in 1991, where JR Ewing was shown an alternate version of the world by Satan.
Knots Landing proved a solid hit for CBS throughout the 1980s, with Alec Baldwin, William Devane and Michele Lee among its stars.
Cynthia Cidre, executive producer of the revived Dallas, revealed in August that she had previously tried to get Van Ark and Shackelford to appear in the first season, but the deal "didn't work out" at the time.
The revived Dallas features a mix of new characters and favorites from the original series including JR Ewing (Larry Hagman), Bobby Ewing (Patrick Duffy) and Sue Ellen Ewing (Linda Grey).
Dallas returns to TNT on January in the US.
Night News Editor
Justin has been with Digital Spy since 2010, and in that time, has covered countless major news events for DS from the US.
He has worked previously as both a reporter and sub editor for the brand, prior to taking on the position of Night News Editor in 2016.
Over more than a decade, he has interviewed a wide-ranging group of public figures, from comedian Steve Coogan to icons from the Star Trek universe, cast members from the Marvel Cinematic Universe and reality stars from numerous Real Housewives cities and the Below Deck franchise. As a US contributor to Digital Spy, Justin has also been on the ground to cover major pop culture events like the Star Wars Celebration and the D23 Expo.
