- Real Name: Arista Nadai Devar
- Mirror Counterpart: Arista Devar of the SS Andraste
- Race: Betazoid
- House: 13th House of Betazed
- Birthdate: 235311.14 (November 14, 2353)
- Birthplace: Mestara, Betazed
- Eyes: Hazel/Brown
- Hair: Golden Blonde
- Height/Weight: 5'7", 140 lbs.
- Date of Death: 2372
- Mother: Arianna Sarrin-Devar
- Father: Devyn Devar
- Siblings: Alana Devar and Galwyn "Gal Teyr" Devar are full relation. Carmen Rogers half sister (same father).
- Significant Other: None
- Children: None
Arista was the prodigy child of her parents and was enrolled in honor schools. She had just entered the University of Betazed and completed her second semester when she took the infamous trip with her parents. A bright future was in store for this aspiring Biologist and artisan. Her paintings still hang in the walls of the 13th House.
There was an unspoken rivalry between Arista and her sister, Alana. Alana felt her older sister was brighter and prettier than she could ever be. Even though it was confirmed of Arista's death by biosignature traces, she is most active in Alana's dreams. It usually comes forth during a stressful event passing in the darker-haired sister's life, when she feels most helpless and inferior. Even though Arista was the mediator through the childhood conflicts of Galwyn and Alana, the two sisters loved each other even if the rivalry pursued.
A mirror Arista has managed her way to stumble into this time thread and currently serves on a Betazoid figher vessel, the SS Andraste, after a stint in Starfleet.