| 1 | Ainsley |
Greenburg | One of the protagonists |
| | Maisy |
Greenburg | Ainsley and Peter's daughter |
| | Peter |
Greenburg | Ainsley's husband |
| | Dylan |
Greenburg | Ainsley and Peter's son |
| | Riley |
Greenburg | Ainsley and Peter's son |
| 2 | Glennon |
| Ainsley's bestfriend. |
| | Grandma |
| Ainsley's mother |
| 3 | Joanna |
St. James | Ainsley and Peter's marriage counselor |
| 7 | Brendan |
| Ainsley's co-worker |
| | Tina |
| Ainsley's co-worker |
| | Mackenzie |
| Ainsley's colleague |
| | Becca |
| Ainsley's colleague |
| | Tara |
| Ainsley's boss |
| | Jenn |
| H.R. employee |
| 8 | Seth |
| Glennon's husband. |
| | Melodie |
| Peter's assistant |
| | Gina |
Miller | Peter's employee |
| | Matthew |
| Grandma's new neighbor. Aka: Matt |
| | Taylor |
Swift | Famous singer |
| | Sampson |
| Matt's dog |
| 12 |
Harry | Potter |
Fictional character |
| 14 |
Adele | |
Famous singer |
| 16 |
Nikki | |
Girl Peter met at the bar; part-time nanny |
| 17 |
Jim | |
One of Ainsley's victims |
| | Beckman |
| Peter's business partner |
| 20 |
Lincoln | |
Gina's fiancé; restaurant owner |
| | John |
| Beckman's divorce lawyer |
| 22 |
Detective | Burks |
Detective working Ainsley and Peter's case |
| | Scout |
| Ainsley's former dog |
| | Stefan |
| One of Peter's victims |
| | Illiana |
| One of Peter's victims |
| 24 |
Mallory | |
Gina's friend; the girl Peter had a fling with |
| | Molly |
Brown | Actress |
| | Bailey |
| Maisy's friend |
| | Janessa |
| Maisy's friend |
| | Sandra |
Bullock | Actress |
| | Ryan |
Reynolds | Famous actor |
| 35 |
Burt | Stover |
Ainsley's job interviewer; Peter's new identity |
| | Beth |
| Burt's assistant |
