Lore [Star Trek]

Species: Soong-type android
Status: Body disassembled & deactivated (2370)
Positronic brain integrated into hybrid conglomerate, Daystrom Android M-5-10 (2401)
Father:
Dr. Noonien Soong (creator)
Mother:
Juliana Soong (Human)
Juliana Tainer (android)
Sibling(s):
Dr. Altan Soong (Human "brother")
B-4 (older "brother")
Data (younger "brother")
Two additional prototypes (older "brothers")
Other relative(s):
Dr. Adam Soong ("ancestor")
Dr. Arik Soong ("ancestor")
Dr. Ira Graves ("grandfather")
Lal ("niece")

Lore was a Soong-type android constructed by Doctor Noonien Soong and Juliana Soong at the Omicron Theta colony. Built in Dr. Soong's image, Lore was the fourth android they constructed and embodied the first successful example of a fully functional positronic brain. An earlier model Soong-type android prototype, B-4, also had a positronic brain, but of a less sophisticated type, resulting in a simple-minded personality.
Lore was extremely advanced and sentient, possessing megastrength, speed, and intelligence when compared to a Human. Lore's emotional programming was also very advanced. However, he began displaying signs of emotional instability and malevolence, leading Lore to see himself as superior to Humans. Lore frightened the other colonists, who demanded that Soong deactivate him. Lore later claimed they saw him as "too perfect", and were envious.
Eventually, Soong capitulated, but not before Lore had secretly contacted the Crystalline Entity in a bid for revenge, offering it the planet's life to ensure his survival. After deactivating and dismantling Lore, Soong set about constructing Lore's brother, Data, an android without destabilizing emotions.

Soong placed Lore's components into storage, intending to correct Lore's behavioral problems eventually. Lore later harbored resentment towards his creator for abandoning him. Yet, when he met his father again on Terlina III and learned that Soong was dying, he was sincerely upset and, for a brief moment, he displayed a genuine concern for his father. Nevertheless, Lore's malevolent streak soon prevailed.
Following Lore's communiques, the Crystalline Entity attacked Omicron Theta in 2338 and destroyed all life on the planet. Both Lore and Data were left behind, but Data was subsequently discovered by the crew of the USS Tripoli. Lore remained in Soong's laboratory until 2364, when the USS Enterprise-D arrived at the planet. The ship's chief engineer, Lieutenant Commander Argyle, and chief medical officer, Dr. Beverly Crusher, were successful in reactivating the android.
Although initially presenting himself as willing to please and serve Humans, sharing some information about his 'childhood' in the colony with his 'brother', Lore swiftly returned to his previous ways. Deactivating Data, Lore stole his uniform and masqueraded as him. Lore summoned the Crystalline Entity again, intending to feed the crew of the Enterprise-D to it. His treachery was discovered due to the differences between him and Data (such as Lore's use of contractions), and he was transported into open space.