Sacha and Tasha were a pair of somewhat snobby Russian ballerinas, and (arguably) identical twins. They both survive the train wreck, only to vanish,they reappear in cemetery near the mansion along with Aaron,they were captured by Ernst and reappear as the undead stars of a dual boss-battle, mocked up as a ballet performance. They come across as arrogant and bratty, and are prone to arguing amongst themselves when something goes wrong, as seen when the player dodges their dual attack. They are the first real boss encounter, overseen by Mary.
The nightmare realm revealed their dark thoughts, considering one another merely as a "talentless oaf" or "a rock around my neck" and that they would be better off without each other.
- It is very likely that their costumes during their boss fight are based off of the two pivotal characters, Odette and Odile, in the ballet Swan Lake.