| Marriage sees married couple Ian and Emma negotiate the ups and downs of their 30-year marriage. We see them dealing with the insecurities, the ambiguities, the hopes and the fears that are part of all marriages, as the drama explores the risks and the gifts of a long-term intimate relationship. |
| Name | Character | Episodes |
|---|---|---|
| Sean Bean | Ian | 4 |
| Nicola Walker | Emma | 4 |
| James Bolam | Gerry | 4 |
| Henry Lloyd-Hughes | Jamie | 4 |
| Jack Holden | Adam | 4 |
| Kath Hughes | Claire | 2 |
| Shona McHugh | Emily | 2 |
| Victoria Carling | Sarah | 1 |
| Colin Mace | Nigel | 1 |
| Grant Davis | Alan | 1 |
| Amy Morgan | Louise | 1 |
| Paul Antony-Barber | Henry | 1 |
| Neal Barry | Michael | 1 |