David Mackenzie Director Natasha Richardson Stella Actor Ian McKellen Peter Cleave Actor Marton Csokas Csokas Actor Hugh Bonneville Max Raphael Actor Judy Parfitt Brenda Raphael Actor Sean Harris Nick Actor Gus Lewis Charlie Raphael Actor Wanda Ventham Mrs. Straffen Actor Joss Ackland Straffen Actor Susie Gossling Valerio Patient at Ball Actor Rhydian Jones Mr. Griffen Actor Robert Willox Archer Actor Anne Ambler Patient at ball (uncredited) Actor Jonathan Bridge Asylum Security Man (uncredited) Actor David E. Allen Producer Patrick Marber Writer Patrick McGrath Writer Michael Barlow Executive Producer Laurie Borg Producer John Buchanan Executive Producer Chris Curling Executive Producer Harmon Kaslow Executive Producer Craig Armstrong Original Music Mark Mancina Original Music Giles Nuttgens Cinematographer