In 2008 she appeared in a BBC adaptation of "Little Dorrit". In 2009 she played Sadie Cairncross in the BBC television series "Hope Springs". In 2010, Crosbie appeared in the "Doctor Who" episode "The Eleventh Hour" and in an episode of "New Tricks". In 2014 Crosbie appeared in the movies "What We Did on Our Holiday" and "Into the Woods". In 2015 she appeared in a BBC adaptation of "Cider with Rosie". In 2016 she appeared in the new film version of "Dad's Army". In 2019 she appeared in an episode of "Call the Midwife".