She played Dr. Monica Broome in the first series of Cardiac Arrest and DC Grace Harris in the first two series of Thief Takers.[4] She had a recurring role in the third series of Cold Feet as Emma Keaton and returned to medical dramas in 2006, playing Dr. Christine Whelan in The Golden Hour. In 2007, she starred as Nita in the BBC One series True Dare Kiss,[1][3][5] and later that year began a recurring role in EastEnders as Rachel Branning, taking over the character from Sukie Smith. In February 2008, she played the spoken title role in a City of Birmingham Symphony Orchestra production of Stravinsky's Perséphone, broadcast on BBC Radio 3.[6] In July 2008, she appeared in an episode of the ITV murder mystery series, Midsomer Murders as journalist Julie Benson,[7] and in an episode of George Gently entitled "The Burning Man", playing the character Wanda Lane. In March 2010, she appeared as Maureen in BBC One's second series of Five Days. She also played the spaceship captain in the Doctor Who 2010 Christmas special, "A Christmas Carol".[8] In November 2010, she appeared as Christopher Eccleston's character's wife in Jimmy McGovern's Accused.[9]
She has also played a pregnant woman in an episode of Not Going Out.[10] From 2014 to 2015, she played the role of Olga Fitzgerald, Geography teacher and Headteacher Vaughan Fitzgerald's estranged wife in BBC's Waterloo Road. The following year she played Dorothea Ames, Head teacher at Coal Hill Academy, in the BBC3 series Class, and provided the voice of Yuria of Londor in the video game Dark Souls III. She played Louise Wilson in BBC's The A Word, and reprised the role more prominently in its spin-off series Ralph & Katie.
Personal life
Quesnel practises kickboxing, tai chi, and flamenco dancing. In 2017, Quesnel won bronze at the British Council for Chinese Martial Arts (BCCMA) annual British Tai Chi Championships in the Open Weapon category for her Wudangtaijijian routine.[4]