| Kate | Adie | A famous journalist. |
| Alexander | Belhomme | Travel journalist. |
| Alan | Blacklock | Lo's father. |
| Laura | Blacklock | Protagonist. aka: Lo. |
| Anne | Bullmer | Lord Bullmer's wife, the heiress. aka: Lady Bullmer. |
| Lord Richard | Bullmer | Director, Northern Lights Company. Aurora Borealis owner. |
| Pamela | Crew | Lo's mother. |
| Archer | Fenlan | Well-known expert on "Extreme Travel". |
| Erik | Fossum | General Manager. |
| Martha | Gellhorn | A famous journalist. |
| Konrad | Horst | Owner of the Bar. aka: Captain Birdseye. |
| Ben | Howard | Lo's ex-boyfriend. . |
| Otto | Jansson | A chef on the Aurora. |
| Chloe | Jenssen | Former model. Lars's wife. aka: Wylde. |
| Lars | Jenssen | Head of a Swedish Investment Group. |
| Mrs. | Johnson | Lo's neighbor. |
| Captain | Larsen | Captain of the Aurora. |
| Cole | Lederer | Photographer. |
| Judah | Lewis | Lo's boyfriend. aka: Jude. |
| Camilla | Lidman | Stewardess in charge of vessal
hospitality. |
| Rowan | Lonsdale | Lo's boss. |
| Johann | Nilsson | Head of Security on the Aurora. |
| Ernst | Solberg | An investor no-show to board the Aurora. |
| Jennifer | West | Assistant Features Editor at Velocity. |
| Tina | West | Editor of the Vernean Times. |
| Owen | White | A UK investor. |
| Lissie | Wight | Lo's best friend. |
| Barry | | Lo's cognitive behavioral therapist. |
| Birgitta | | Aurora staff. |
| Bjorn | | Waiter. |
| Carrie | | The woman in Cabin 10. |
| Delilah | | Cat. |
| Erik | | Karla's son. |
| Erin | | Lo's friend. |
| Eva | | One of the Spa Therapists. |
| Hanni | | Aurora staff who often worked at the bar. |
| Ingrid | | Kitchen staff. |
| Iwona | | One of the cleaners on the Aurora. |
| Jameela | | Kitchen staff. |
| Jess | | A contact on Archer's phone. |
| Josef | | Crew member on the Aurora. |
| Karla | | Josef's colleague. Lo's suite attendant. |
| Klaus | | Spa therapist on the Aurora. |
| Ulla | | Stewardess Nobel Suite and forward cabins. |
