Pauline McLynn – best known as Mrs Doyle in 1990s comedy Father Ted – has filmed nude scenes after being cast as Frank Gallagher’s love interest in Shameless.

The 47-year-old Irish actress, most recently seen in Jam and Jerusalem, plays librarian Libby Croaker in the Manchester-based show, which returns for a seventh series on Channel 4 on Tuesday January 26.

She said: “It’s not exactly a part people have seen me play before, I was always handier as character old crones – I get to be someone my own age now and actually somebody’s love interest, and I have to get my kit off because it’s Shameless and sex with someone else, or something else, comes hand in hand with being on the Chatsworth estate.”

The sex scenes are certainly further from Father Ted than Manchester is from Craggy Island, where dowdy Mrs Doyle attended to Father Ted and his sidekicks Dougal and Jack – often employing her famous “ah go on, go on, go on, go on” catchphrase, but Pauline has thrown herself into the deed.

She said: “It doesn’t bother me that people have clothes and underwear on during sex scenes but if it’s a time when they should be naked then they should be naked, so I did get my kit off for the first time in my life… well the first time for money!”