Cast member of the new TV series "Dallas" Larry Hagman arrives at the world premiere of the 40th anniversary restoration of the film "Cabaret" during the opening night gala of the 2012 TCM Classic Film Festival in Hollywood, Calif., April 12, 2012. REUTERS/Fred Prouser

Resurrected TV drama Dallas is to return for a second series after the show's comeback proved a ratings hit.

The program, which has been absent from the small screen for 21 years, returned on U.S. network TNT last month.

After almost seven million viewers tuned in to watch the relaunched drama series, TV bosses have commissioned a second run of the show.

Veteran cast member Larry Hagman, whose character J.R. Ewing was famously gunned down in a 1980s cliffhanger, tells Britain's Daily Express, "I hope I don't get shot again. If I hold out for more money this time they might kill me off."