Benedict Cumberbatch Patrick Melrose Actor, Executive Producer Dainton Anderson Thomas Melrose Actor Holliday Grainger Bridget Watson Scott Actor Jessica Raine Julia Actor Jennifer Jason Leigh Eleanor Melrose Actor Hugo Weaving David Melrose Actor Allison Williams Marianne Actor Pip Torrens Nicholas Pratt Actor Prasanna Puwanarajah Johnny Hall Actor Indira Varma Anne Moore Actor Philip Arditti Pierre Actor Gary Beadle Chilly Willy Actor Richard Brake Mark Actor Nancy Crane Nancy Banks Actor Andrea Davy Mrs. Willy Actor Kevin Layne Shades Actor Sebastian Maltz Young Patrick Melrose Actor Matthew Marsh Ballentine Morgan Actor Charley Palmer Rothwell Leon Actor John Standing George Watford Actor Eben Young Jerry Banks Actor Edward Berger Director David Nicholls Writer Edward St. Aubyn Writer Volker Bertelmann Music Stephen Smallwood Producer Rachael Horovitz Executive Producer Michael Jackson Executive Producer Adam Ackland Executive Producer Helen Flint Executive Producer