The cat kept by Lieutenant Commander Data aboard the Enterprise-D, an orange tabby who tolerates few people besides her owner and survives the destruction of the ship.
Spot is Data's cat, first seen in Data's Day. The android cares for the animal as part of his study of human behaviour, composes the poem Ode to Spot in Schisms and tries repeatedly to train a pet that has no interest in being trained.
The cat's appearance is inconsistent: Spot begins as a long-haired Somali and later becomes an orange tabby, and is called both he and she. In Genesis she gives birth to kittens, and her unaffected litter helps Data find a cure when the crew de-evolves.
Spot appears in episodes including In Theory, Phantasms and Force of Nature. In Star Trek Generations Data weeps on finding her alive in the wreckage of the saucer, and she is seen again in his quarters in Star Trek Nemesis. A scene in which she passes into Worf's reluctant care after Data's death was filmed for Nemesis but cut from the finished film.