Ash has seen this movie.
Life for the residents of a tower block begins to run out of control.
| Dr. Robert Laing | Tom Hiddleston |
| Helen Wilder | Elisabeth Moss |
| Charlotte Melville | Sienna Miller |
| Anthony Royal | Jeremy Irons |
| Richard Wilder | Luke Evans |
| Nathan Steele | Reece Shearsmith |
| Simmons | Dan Renton Skinner |
| Pangbourne | James Purefoy |
| Cosgrove | Peter Ferdinando |
| Fay | Stacy Martin |
| Ann Royal | Keeley Hawes |
| Jane Sheridan | Sienna Guillory |
| Munrow | Augustus Prew |
| Jean | Julia Deakin |
| Robert the Caretaker | Tony Way |
| Laura | Leila Mimmack |
| Mercer | Bill Paterson |
| Talbot | Enzo Cilenti |
| Toby | Louis Suc |
| Vicky | Emilia Jones |
| P.C. White | Neil Maskell |
| Lucy | Alexandra Weaver |
| Miriam | Victoria Wicks |
| George | Joseph Harmon |
| Dominic | Dylan Edwards |
| Bobby | Toby Williams |
| Suzie | Siobhán O'Kelly |
| Mrs. Munrow | Maggie Cronin |
| Mr. Munrow | Patrick Fitzsymons |
| Mrs. Hillman | Eileen Davies |
| Mr. Hillman | Kenneth Hadley |
| Gym Instructor | Patrick Buchanan |
| Kid's Party Dad | Colin Ash |
| Resident | Colin Carnegie |
| Delivery Man | Michael Condron |
| Upper Floor Resident | Richard Croxford |
| Queue Person | Graham Duff |
| Barricader | Matt Faris |
| Young Woman | Karen Hassan |
| Wine Woman | Monique Kelly |
| Groping Man | Faolan Morgan |
| Shopper | Chris Patrick-Simpson |
| High-Rise (voice) | Sara Dee |
| Radio (voice) | Fenella Woolgar |
