Catherine Tate is an English comedian, actress and writer. She has won numerous awards for her work on the sketch comedy series The Catherine Tate Show as well as being nominated for an International Emmy Award and seven BAFTA Awards. Following the success of The Catherine Tate Show, three Christmas specials of the series aired, in 2007, 2009 and 2014, with the second and third focusing on the character of Nan. Tate has also played Donna Noble in Doctor Who, and continued the role until 2010. In 2011, she began playing Nellie Bertram in the US version of The Office, and was a series regular until the show ended in 2013. Tate is currently starring in the BBC sitcom, Big School, and plays French teacher, Ms. Sarah Postern.