From Official Death at a Funeral website:

Jane - Keeley Hawes

BAFTA award-winning BBC drama series Spooks (MI5 in the United States). She also took on the role of Kitty Butler in the
A popular face on both the big and small screen, British actress Keeley Hawes is perhaps best known for her role as Zoe in the controversial BBC production, Tipping the Velvet for which she was widely acclaimed. Other notable television credits include, Marple: The Murder is Announced, Sex & Lives, The Murdoch Mysteries, A Knights Tale, Othello, Wives and Daughters, Our Mutual Friend and Karaoke.

Most recently Keeley took the female lead in The Best Man alongside Richard Coyle and Toby Stephens and prior to that, she appeared in Michael Winterbottom’s comedy feature A Cock and Bull Story opposite Steve Coogan; Under the Green Wood Tree and Macbeth as part of BBC1’s Shakespeare series alongside James McAvoy.

Notable feature film credits include, The Avengers, with Ralph Fiennes, Sean Connery and Uma Thurman, Complicity and The Last September. Keeley was recently seen as the female lead in After Thomas, a television drama based on the true story of one couple’s struggle to meet the challenges of their child’s autism.