| Dr. |
Cacciari | Conor's doctor |
| Mr. |
Cameron | Junior analyst Eli speaks with |
| Ludovico |
Einaudi | Maya's favorite composer |
| Alan |
Greenspan | American economist and financial advisor |
| Conor |
Harkness | Eli's best man |
| Finneas |
Harkness | Conor's father |
| Eli |
Killgore | Maya's brother |
| Maya |
Killgore | Protagonist |
| Dr. |
Sharma | Professor at UT Austin |
| Jonathan |
Smith-Turner | Man who runs the research center in Boston. Aka: Jack |
| Alfie |
| Maya's ex-boyfriend |
| Avery |
| The girl who drives Maya; Conor's ex-girlfriend |
| Axel |
| Wedding guest; NHL player |
| Bitty |
| Tiny's puppy |
| Bob |
| Conor's imaginary friend |
| Des |
| Maya's friend |
| Diego |
| Tisha's fiancé |
| Georgia |
| Rose's cousin |
| Jade |
| Maya's friend |
| Kaede |
| Minami and Sul's daughter |
| Lucrezia |
| The housekeeper |
| Lukas |
| Scarlett's boyfriend |
| Minami |
| Conor's ex-girlfriend and business partner |
| Nyota |
| Rue's childhood friend |
| Paul |
| Axel's brother |
| Rose |
| Maya's friend |
| Rue |
| Eli's fiancée |
| Sami |
| Maya's friend |
| Scarlett |
| Maya's new friend |
| Sul |
| Minami's current husband |
| Surika |
| Rose's ex-boyfriend |
| Tamryn |
| The beautiful girl flirting with Hark |
| Tiny |
| Eli and Rue's dog |
| Tisha |
| Nyota's sister |
