Ubik

A debt-ridden technician at Runciter Associates who becomes the novel's centre of consciousness as reality begins to decay around him.

Owner of Runciter Associates, whose apparent death after the Luna sabotage sets the novel's central ambiguity in motion.

A newly hired anti-precog whose talent works by altering the past rather than blocking a prediction.

Runciter's deceased wife, held in half-life cryonic suspension and consulted for guidance.