Amanda Bynes as Daphne Reynolds

Colin Firth as Henry Dashwood

Kelly Preston as Libby Reynolds

Eileen Atkins as Jocelyn Dashwood

Anna Chancellor as Glynnis Payne

Jonathan Pryce as Alistair Payne

Oliver James as Ian Wallace

Christina Cole as Clarissa Payne

James Greene as Percy

Ben Scholfield as Armistead Stuart

Sylvia Syms as Princess Charlotte

Tara Summers as Noelle

Peter Hugo as Prince Charles

Jonah Russell as Policeman

Stanley Townsend as Bride's Father

Roger Ashton-Griffiths as Lord Orwood

Judy Collins as Dancer

Victoria Wicks as Henry's Secretary

David Gyasi as Ian's Band Member

Soleil McGhee as Young Daphne

Mindy Lee Raskin as Bride

Nita Mistry as Girl in Hostel

Natalie Bromley as Jane

Stephanie Lane as Fiona

Sarah Mark as Newspaper Reporter #2

Elizabeth Richard as Queen

Flaminia Cinque as Caterer

Ethel Crichlow as Dancer

Layla Ellison as Dancer

Annie Lucas as Dancer

Susan Mills as Dancer

Jane Victory as Dancer

June Walker as Dancer

Maureen Waters as Dancer

Francesca De Luca as Dancer