Joanna Marion Scanlan (born 27 October 1961) is a British actress and writer. On television, she is known for her roles in The Thick of It (2005–2012), Big School (2013–2014), Puppy Love (2014), No Offence (2015–2018), Requiem (2018), and The Larkins (2021). She was nominated for three BAFTA TV Awards for Getting On (2009–2012), including two for Best Writing.