| Luke |
Albrecht | Meghan's friend |
| Penelope |
Albrecht | Luke's wife |
| Caitlin |
Beckett | Comatose patient who jumped from a pedestrian bridge |
| Tom |
Beckett | Caitlin's father |
| Amelia |
Beckett | Caitlin's mother |
| Jackson |
Beckett | Caitlin's brother |
| Henry |
Beckett | Caitlin's brother |
| Mandy |
Cho | Meghan's doubles partner |
| Natalie |
Cohen | Meghan's high school classmate. Aka: Nat |
| Milo |
Finch | Ex-convict, restaurant owner, and sex offender |
| Carrie |
Grant | Meghan's best friend |
| Simon |
Hall | Sienna's friend |
| Evan |
Hansen | Broadway star and Sienna's idol |
| Marcus |
High | Driver responsible for the crash |
| Thomas |
Kinkade | Artist known for his paintings |
| Marin |
Layley | Meghan's stroke patient |
| Sienna |
Long | Meghan's daughter |
| Ben |
Long | Meghan's ex-husband; Sienna's father |
| Meghan |
Michaels | Nurse and protagonist |
| Emily |
Miller-Cease | Natalie's closest friend in high school |
| Joseph |
Minor | Drug addict |
| Hilman |
Mr. | Elderly neighbor from the first floor |
| Pruitt |
Mr. | Sienna's teacher |
| Garcia |
Mr. | Sienna's math teacher |
| Jason |
Murphy | Meghan's best friend |
| Daniel |
Murphy | Penelope's friend. Aka: Dan |
| Declan |
Roche | Natalie's ex-husband; a lawyer |
| Alec |
| Man Meghan recently dated |
| Bridget |
| Caitlin's nurse |
| Erin |
| Another nurse at the hospital |
| Evan |
| Meghan's new downstairs neighbor |
| Faye |
| Divorce group leader and therapist |
| Field |
| Soldier |
| Gianna |
| Sienna's friend |
| Grant |
| Field's colleague |
| Lewis |
| Member of Meghan's divorce support group |
| Marianne |
| Nursing assistant |
| Maya |
| Nurse at the hospital |
| Misty |
| Nurse who works with Meghan |
| Natalia |
| Meghan's fellow nurse |
| Nico |
| One of Sienna's friends |
