Theatre veteran Ria Jones has told RTÉ Entertainment there is "nothing worse than a bitter actress" and says if she ever finds herself heading in that direction, she knows it is time to "leave the business".

Jones is currently playing deluded diva of the silent screen Norma Desmond in a new stage production of Hollywood classic Sunset Boulevard.

The 50-year-old Welsh actress jokingly admits how she shares some similarities with her character in Andrew Lloyd Webber's Tony Award-winning version of the 1950 film noir.

"Yes, I guess there are. I find her very easy to play, so maybe I'm a diva, but I try not to be. We'd be lying if we said we weren't doing it for the applause and the acclaim. Of course, that's all part of it. 

"I'm getting older - I'm 50 - which is the age Norma is in the piece. There are a lot of young actresses who are coming along and you just think, 'If I had my time again, would I do things differently?'. 

"I always said to myself, that if I ever became bitter, there's nothing worse than a bitter actress, so leave the business."

Jones reckons that people should stop clinging on to their youth and accept that they are getting older.

"Sunset Boulevard is a very sad story but it's a very human story, that says you can't let go of your youth, and sometimes it's a lesson to us all to let go of it, and to celebrate the now and look forward to your later years in life, as opposed to constantly living in the past."

Jones, who has been working in theatre for over three decades, says she is looking forward to returning to Dublin when the show hits the Bord Gáis Energy Theatre from November 21.

"I'm looking forward to returning to that beautiful theatre. I was there for only one night a few years ago with West End Women - with Kerry Ellis and Joanna Ampil - and I had such a great time. That auditorium and stage is fantastic!  

"I'm looking forward to doing this role, in this show, on that stage," she said.

Ria Jones is looking forward to introducing Norma Desmond to Dublin

"I'm also looking forward to the friendliness of everyone. I was there with Les Miserables in the nineties at the Point Theatre. I was there for six months and I had a great time.

"I'm really looking forward to being in the vibe of Dublin, there's a few places I would like to visit. Oh, it's going to go too quickly. I wish we were there longer but at least we're coming."

Sunset Boulevard is at Dublin's Bord Gáis Energy Theatre from November 21 - 25.

Here's a sneak peek: