Michael Gambon Howard Mollison Actor Keeley Hawes Samantha Mollison Actor Rory Kinnear Barry Fairbrother Actor Julia McKenzie Shirley Mollison Actor Joe Hurst Arf Price Actor Sonny Ashbourne Serkis Paul Price Actor Richard Glover Simon Price Actor Silas Carson Vikram Jawanda Actor Emily Bevan Mary Fairbrother Actor Rufus Jones Miles Mollison Actor Monica Dolan Tess Wall Actor Abigail Lawrie Krystal Weedon Actor Simon McBurney Colin Wall Actor J.K. Rowling Writer Jonny Campbell Director Ruth Kenley-Letts Producer