| Marnie has a life-threatening condition. The doctors believe it is in her best interests to be allowed to die, but her loving family disagree. And so begins a fight that will take them through every stage of a legal process, as they struggle to contemplate this huge decision. Who decides? And in whose best interests will it be? |
| Name | Character | Episodes |
|---|---|---|
| Michael Sheen | Andrew | 4 |
| Gary Beadle | Frank | 4 |
| Pippa Haywood | Judge Spottiswood | 4 |
| Alison Oliver | Katie | 4 |
| Sharon Horgan | Nicci | 4 |
| Noma Dumezweni | Samantha | 4 |
| Lucian Msamati | Derek | 4 |
| Lisa McGrillis | Brenda | 4 |
| Shane Zaza | Fred | 4 |
| Mat Fraser | Greg | 4 |
| Chizzy Akudolu | Mercy | 4 |
| Anneika Rose | Francesca | 2 |