| David |
Bowie | An english singer. |
| Deborah |
Caine | Nina's editor-in-chief. |
| Grandpa |
Cal | Jack's grandfather. |
| Jonathan |
Clarke | The angry patient. A short-stringer |
| Jane |
Fonda | American actress and activist. |
| Susan |
Ford | One of Amie's co-teachers. |
| Javier |
Garcia | Jack's roommate. Aka: Javi. |
| Bill |
Gates | Owner of Microsoft. |
| Gertrude |
Halpern | Simon's lover. |
| Alice |
Harper | A Congresswoman. |
| Maura |
Hill | Nina's live-in-partner. |
| Jack |
Hunter | Katherine's nephew |
| Katherine |
Hunter-Rollins | Anthony's wife. |
| Wes |
Johnson Sr. | A Senator. |
| Amelia |
Parkins | A Harvard professor of political science. |
| Captain |
Reynolds | Javi's buddy. |
| Anthony |
Rollins | A good-looking congressman. |
| Frank |
Sinatra | A famous singer. |
| Anika |
Singh | A surgeon, Hank's ex-girlfriend. |
| Simon |
Starr | The soldier who wrote the letter. |
| Ralph |
Waldo-Emerson | American writer. |
| Nina |
Wilson | A lesbian editor. |
| Amie |
Wilson | Nina's sister. |
| Ben |
| A thoughtful architect. |
| Carl |
| One of the support group members. |
| Chelsea |
| One of the support group members. |
| Claire |
| Ben's girlfriend. |
| Damon |
| Ben's college friend. |
| Hank |
| A doctor, One of the guys from the support group. |
| Lea |
| The girl that Ben met at the support group meeting. |
| Louisa |
| A newsreporter. |
| Lucy |
| Hank's ex-girlfriend. |
| Meg |
| Amie's student. |
| Midge |
| Ben and Amie's daughter. |
| Nihal |
| One of the support group members. |
| Russ |
| A Congressman. |
| Sarah |
| Nina's college roommate. |
| Sean |
| The group facilitator. |
| Ted |
| Terrell's boyfriend. |
| Terrell |
| One of the support group members. |
| Willa |
| Amie's bestfriend. |
| Willie |
| Ben and Amie's son. |