| Colin Firth | ... Joe |
| Catherine Keener | ... Barbara |
| Willa Holland | ... Kelly |
| Perla Haney-Jardine | ... Mary |
|
| and |
| Hope Davis | ... Marianne |
|
| Margherita Romeo | ... Rosa |
| Alessandro Giuggioli | ... Lorenzo |
| Dante Ciari | ... Fabio |
| Gherardo Crucitti | ... Gerry |
| Monica Bennati | ... Monica |
| Angelica Moretti | ... Angelica |
| Carlo Moretti | ... Carlo |
| Sara Stewart | ... Susanna |
| James Laurenson | ... Marianne's Father |
| Gary Wilmes | ... Danny |
| Gabriella Santinelli | ... Danny's Wife |
| Kerry Shale | ... Stephen |
| Sune Frontani | ... Eva |
| Demetri Goritsas | ... Demetri |
| Ellen Sheean | ... Elderly Aunt |
| Trevor White | ... Mike |
| Kyle Griffin | ... Scott |
| Olivia Cumming | ... Dee |
| Riccardo Cauda | ... Elderly Landlord |
| Laura Iadeluca | ... Headmistress |
| Livio Basoli | ... University Student 1 |
| Barbara Sforzini | ... University Student 2 |
| Kieran O'Brien | ... Voice Reading Sonnet |
| Stefano Barabino | ... Alessandro |
| Giulio Enante | ... Policeman |
| Bradley Cumming | ... Kelly & Mary's Cousin |
| Drew Cumming | ... Kelly & Mary's Cousin |
| Brie Eagan | ... Kelly & Mary's Cousin |
| Zachary Griffin | ... Kelly & Mary's Cousin |
| Amanda Griffin | ... Kelly & Mary's Cousin |
| Lauren Peterson | ... Kelly & Mary's Cousin |
| Hannah Peterson | ... Kelly & Mary's Cousin |
| Kyle Peterson | ... Kelly & Mary's Cousin |
| Morgan Peterson | ... Kelly & Mary's Cousin |
| Abree Peterson | ... Kelly & Mary's Cousin |
| Matteo Repetto | ... Matteo |
| Andrea Acquarone | ... Lorenzo's Friend |
| Manuela Parodi | ... Lorenzo's Friend |
| Mattia Mor | ... Lorenzo's Friend |
| Federico Cigarini | ... Fabio's Friend |
| Carmelo Mineo | ... Fabio's Friend |
| Lucio Dellagiacoma | ... Fabio's Friend |
