The following is a list of unnamed Barzans.
Attis' wife
This female was married to Doctor Attis, and together they had two daughters, Amma and Tolpra.
In 3189, the family was living on board the USS Tikhov, when the ship encountered an coronal mass ejection. She and her two daughters died; only Attis, whose body was thrown out of phase, survived the incident. (DIS: "Die Trying")
She was played by Ana Sani.
StarTrek.com identifies her as Mrs. Attis.
Nhan's family
This was the family of Starfleet officer D. Nhan. They lived in the 23rd century.
In 3189, Doctor Hugh Culber thought Nhan's family would be so proud of her for joining Starfleet. Nhan replied, "They were devasted. I can only imagine when they heard about my death." (DIS: "Die Trying")
This family was only mentioned in dialogue.
Scientists
According to Bhavani, these scientists attributed the Barzan wormhole's regular visibility to radiation buildup in the wormhole's accretion disk. (TNG: "The Price")
These scientists were only mentioned in dialogue.