| Answer | Crossword Clue |
|---|---|
| LEIA | One of a pair of sci-fi twins |
| REMUS | One of a famous pair of twins. |
| ENG | One of a pair of famous twins |
| SIS | One of a pair of fraternal twins, maybe |
| NEO | "The One," in a 1999 sci-fi film |
| HAL | Sci-fi computer name incorrectly claimed to be a one-letter shift |
