Forest of the Dead

A charismatic Time Lord who guides the team through the Library’s crisis. He uses his intellect and resourcefulness to outsmart the Vashta Nerada and protect the minds stored in the core. His willingness to risk himself reflects a deep commitment to safeguarding knowledge and human life. His leadership frames the plan to extract everyone from the dangerous simulation.

A mysterious, time-wary ally who sidesteps conventional loyalties. She takes decisive action to save the Doctor by stepping into the core herself, aware that altering their timelines could have profound consequences. River’s presence connects the present crisis to broader temporal arcs and leaves a lasting imprint on the Library’s memory.

A human participant in the Earth simulation who experiences time skipping and learns that her world is artificial. She forms a bond with Lee that anchors her sense of reality as danger intensifies. Her awareness of the artificial environment becomes crucial to reaching safety for herself and others.

A brilliant inventor who explains the Library’s origin and the mind-transfer project. He ties the Library’s existence to a family history involving his grandfather and Charlotte, revealing a complex motivation behind preserving human minds. Lux’s role is to contextualize the miracle and the costs of safeguarding memory.

A member of River’s team who dies during the Vashta Nerada attack, then appears as a warning avatar in the Earth simulation. Her presence foreshadows danger and underscores the fragility of the team’s safety. Her sacrifice accentuates the stakes of the crisis.

The avatar of the virus-checking program guiding Donna through the simulation. Dr Moon represents the clinical, protective layer of the artificial world, steering characters toward safety and clarity amid confusion. Her presence helps maintain order within the chaotic environment.

Donna’s partner in the Earth village, whose relationship with Donna adds emotional stakes to the survival story. His bond to Donna grounds the human element amid the high-tech crisis. Lee embodies everyday life clinging to reality against a collapsing simulation.

Lux’s terminally ill aunt whose mind is preserved within the Library’s core. She appears as a guiding presence, reassuring River and others as the simulation evolves into a safer space. Charlotte’s survival through digital means underscores the core’s promise and peril.