Miriam Margoyles turned the airwaves blue when she revealed she wished Jeremy Hunt good luck as Chancellor - and then swore live on air.
The Bafta-winning star appeared on Radio 4’s Today programme on Saturday morning and told listeners she had just bumped into the former health secretary in the BBC corridors after his own interview.
To the shock of listeners she swore loudly before being removed from the airwaves.
She said: “When I saw him there I just said you've get a hell of a job, the best of luck.
“What I really wanted to say, was f*** you, you b******. but you can't say that.”
The comment prompted an apology form the presenters who quickly introduced the sports news.
Miriam, the star of Blackadder as well as Harry Potter, was ushered out of the studios shortly after uttering the expletive.
The comment was well received on social media however, with many people admitting they laughed.
TV presenter Anneka Rice said: “A joy to start the day to Miriam Margolyes saying ‘F*** you’ on Radio 4.
“I love her reliability!”
Fern Britton added: "God bless #MiriamMargolyes on @BBCr4today.
"Her poetic and fulsome thoughts on #RobbieColtrane and slightly pithier ones on #JeremyHunt. Gods bless freedom of speech."
Former Chelsea footballer Graeme Le Saux said: "Today will forever be known as Miriam Margolyes day."
Some listeners celebrated Miriam, 81, as a "national treasure" for sharing her feelings with the nation.
One laughed: "Miriam Margolyes is a national treasure.
"Hearing her just say on #Today that she wanted to tell Jeremy Hunt "F*** You" and the vehemence with which she said it was a moment of pure joy."
Jeremy Hunt yesterday replaced sacked Kwasi Kwarteng as Chancellor and was this morning making his first interviews in the new role.
He admitted on Sky News “mistakes were made” by PM Liz Truss over the mini budget and warned “difficult decisions” lay ahead.
He said: “There were mistakes. It was a mistake when we’re going to be asking for difficult decisions across the board on tax and spending to cut the rate of tax paid by the very wealthiest.
" It was a mistake to fly blind and to do these forecasts without giving people the confidence of the Office of Budget Responsibility saying that the sums add up.
“The Prime Minister’s recognised that, that’s why I’m here.”
Mr Hunt was parachuted into the role yesterday after Mr Kwarteng was sacked just 38 days after he was appointed Chancellor.