Erin works as a host at the luxurious Chalet Perce-Neige in the French Alps. She dropped out of medical school and seeks refuge in the isolation of the mountains. She maintains a calm and professional exterior while carrying intense trauma from her past, frequently suffering from nightmares about digging in the snow. A long scar across her cheekbone hints at a personal history she refuses to discuss with the chalet guests.

Liz is a former Snoop employee who invested her grandmother's money in the application before its launch. She owns two percent of the company's voting shares. This gives her the tie-breaking power in an impending corporate buyout. Growing up in a working-class environment with an abusive father leaves her with severe social anxiety. She feels entirely alienated from the wealthy tech executives she travels with.

Topher is the confident co-founder of the music application Snoop. He grew up wealthy and moves through the world with an effortless sense of entitlement. He strongly opposes the potential corporate buyout of his company. He actively pressures his fellow shareholders to vote against the sale to maintain his control.

Eva is the highly social co-founder of Snoop. She handles the company's investor relations and aggressively advocates for accepting the corporate buyout offer. She has a husband and daughter back in London. Her push to sell the company puts her in direct conflict with her business partner.

Danny serves as the resident chef at Chalet Perce-Neige. He works closely with Erin to ensure the wealthy guests receive exceptional service. He is enthusiastic about the music app Snoop. He maintains strict professional boundaries by refusing to share his personal profile information with his coworkers.

Elliot is the lead code writer for the Snoop application. He attended boarding school with Topher and Rik, forming a tight-knit core group within the company. He possesses an intense focus on the software's technical capabilities, including its location-tracking features. He remains steadfastly loyal to Topher's vision for the business.

Rik works as the Chief Financial Officer for Snoop. He is part of the original boarding school friend group that helped launch the company. He sides with Eva regarding the potential buyout, creating friction with his old friends. He lacks social tact and asks blunt questions about money that make others uncomfortable.

Miranda handles press and media relations for Snoop. She monitors the company's public image and closely tracks upcoming software updates. She maintains a close relationship with Rik and actively observes the power dynamics shifting among the company founders.

Tiger manages wellness and client relations for Snoop, while also overseeing company design. She leads the staff in corporate meditation exercises. She relies on prescription sleeping pills to manage her rest and attempts to maintain calm within the increasingly fractured executive group.

Carl serves as the corporate lawyer for Snoop. He views every situation through a lens of legal liability. During crises, his immediate reaction is to calculate legal risks and consider lawsuits. He prioritizes the company's legal standing over emotional responses.

Ani works as the dedicated personal assistant to Eva. She manages her boss's strict schedule and constantly monitors the whereabouts of the executive team. She is highly observant of people's movements during the ski trip.

Inigo serves as the personal assistant to Topher. He manages Topher's communications and attempts to handle logistics during the chalet's communication blackouts. He is deeply invested in the personal dynamics of the executive team.

Alex is Erin's brother who died in an avalanche three years prior to the events of the novel. His death profoundly shapes Erin's current life choices. He represents the deep grief she attempts to escape by living in the isolated French Alps.

Will was Erin's boyfriend who died alongside her brother in an avalanche. Erin still experiences traumatic flashbacks of trying to dig him out of the snow. Her memories of him keep her emotionally anchored to the mountains.