- Emilia Clarke Louisa "Lou" Clark
- Sam Claflin Will Traynor
- Janet McTeer Camilla Traynor
- Charles Dance Steven Traynor
- Matthew Lewis Patrick
- Brendan Coyle Bernard Clark
- Stephen Peacocke Nathan
- Jenna Coleman Katrina "Treena" Clark
- Samantha Spiro Josie Clark
- Lily Travers Karen
- Vanessa Kirby Alicia