An image of Nidell
Gender:	Female
Species:	Halanan
Status:	Alive (2370)
Marital Status:	Married
Spouse(s):	Gideon Seyetik
Played by:	Salli Elise Richardson

Nidell was a Halanan female and the last wife of noted terraformer Gideon Seyetik. Her species have an unusual ability known as psychoprojective telepathy. Nidell lost control of hers, creating an alter ego, Fenna.

This alter ego met and fell in love with Benjamin Sisko in 2370. When Sisko met Nidell at Seyetik's home, he at first thought it was Fenna. Seyetik later explained his wife's telepathic ability.

The Halanan project these alter egos when they are under great stress and can die from the experience. In order to save Nidell, Seyetik killed himself by flying a shuttle into the sun. She recovered and did not remember her experiences as Fenna. (DS9: "Second Sight")