‘I didn’t even consider it’
The 71 year old star says she didn’t consider accepting the part, as she had just become a new mum, and didn’t want to uproot her family to Yorkshire from their home in the South of England.
She reveals: “They were very interested in having me on Emmerdale in 1985.
"I had just given birth to my daughter Harriet and we’d moved to Windsor, where my husband was running the theatre.
“To uproot and go over to Yorkshire, I didn’t even consider it.
“I have no idea what role it was for, and didn’t investigate it any further.
"I didn’t want to know what the part was or who was going to play it, because I would like to have done it.”
Making waves in Walford
Holderness is currently on screen in another soap - EastEnders.
She is guest-starring this week as Estelle Jones, the modelling agent of Billy and Honey Mitchell’s daughter, Janet.
The TV stalwart says she was a huge fan of the show when it first hit screens in 1985, and hoped that her role in Only Fools and Horses would convince EastEnders bosses to give her a job - which they finally, did, 36 years later.
“I usually played posh birds - I don’t know why,” she explains.
“So I thought, ‘Great, I’ve got Marlene under my belt, maybe they’ll invite me to be on the show’ because I’d shown I can do downmarket as well as posh.”
A future for Estelle and Billy?
Sue adds that she would like to return to EastEnders for another stint in the future.
“Estelle quite fancies the look of Billy, and doesn’t hold back in any way. She is a very flirty, good time girl.
“Billy is clearly nervous, but thinks it could be fun. And personally, I think Billy needs to have a bit of fun in his life, because he’s had a horrible time.
“My theory is that the writers should take pity on Billy, and realise that Estelle could give this man a good time.
“She needs to come back in for a few episodes and show him what fun he could have!”
EastEnders airs Mondays at 8.05pm, Tuesdays and Thursdays at 7.35pm and Fridays at 8.30pm on BBC One - see our TV Guide for full listings.
Get the What to Watch Newsletter
The latest updates, reviews and unmissable series to watch and more!
When she is not writing about soaps, watching soaps, or interviewing people who are in soaps, she loves going to the theatre, taking a long walk or pottering about at home, obsessing over Farrow and Ball paint.