| Jessica Biel | Cora Tannetti |
| Christopher Abbott | Mason Tannetti |
| Dohn Norwood | Dan Leroy |
| Abby Miller | Caitlin Sullivan |
| Bill Pullman | Harry Ambrose |
| Enid Graham | Cora's Mom |
| C.J. Wilson | William
(as CJ Wilson) |
| Patti D'Arbanville | Lorna Tannetti |
| Robert Funaro | Ron Tannetti |
| Susan Pourfar | Cora's Public Defender |
| Adam LeFevre | Police Chief |
| Teri Wyble | Leah Belmont |
| Eric Todd | Frankie Belmont |
| Peggy Gormley | Judge Barrett |
| Meredith Holzman | Sharon |
| Michael H. Cole | Balewski |
| Kyle June Williams | Heather |
| CJ Hunt | Hobbs |
| Raegan Millican | Cora (4 y.o.) |
| Danielle Burgess | Maddie |
| Katelyn Farrugia | Ashley |
| Jacob Berger | Bailiff |
| Devin McGee | Guard |
| Ruby Barnes | Lady in White Hat
(uncredited) |
| Lindsay Hibbard | Nurse
(uncredited) |
| Rosemary Howard | Inmate
(uncredited) |
| Kimberly Hester Huffstetler | Fruit Stand Owner
(uncredited) |
| Terry Jackson | Coroner
(uncredited) |
| Grant Jaeger | Campbell Leroy
(uncredited) |
| Gretchen Koerner | Judge Baird
(uncredited) |
| Adrienne Lovette | Cora's Cellmate
(uncredited) |
| Augie Murphy | Teenage Cora
(uncredited) |
| Carl Reid Jr. | Lakegoer
(uncredited) |
| Anthony Treble | Swimmer /
Lake Goer
(uncredited) |