| Current cast | |
| Amy Brenneman | Amy Gray |
| Richard T. Jones | Bruce Van Exel |
| Dan Futterman | Vincent Gray |
| Jessica Tuck | Gillian Gray |
| Marcus Giamatti | Peter Gray |
| Karle Warren | Lauren Cassidy |
| Jillian Armenante | Donna Kozlowski |
| Timothy Omundson | Sean Potter |
| Tyne Daly | Maxine Gray |
| Past cast | |
| Kevin Rahm | Kyle McCarty |
