Unnamed Trill
List of unnamed Trill.

Arjin's family 
The father of Arjin was not joined to a symbiont, but wanted his daughter (Arjin's sister) to be joined. He was a pilot instructor on Gedana post for forty years. After his daughter was successful in passing the rigorous trials for being joined to a symbiont, she decided not to be joined, which went against her father's wishes. She left home, married her spouse and the two never spoke again. Because of this he told Arjin that it fell upon him to be joined. Arjin's father died in 2369. ()

Barnes' family

Father 
Ensign Barnes of the  once stated to fellow Ensign Sam Rutherford on a date in 2380 that, like him, her father was a cyborg. ()

Sister 
Ensign Barnes of the USS Cerritos once stated to fellow Ensign Sam Rutherford on a date in 2381 that her older sister was joined to a symbiont, which completely changed her personality, in that she would not stop talking about having a symbiont. ()

Commissioner-cum-delegate 1 

This individual first served as one of the commissioners who accompanied Vos,  Xi, and Leader Pav to meet the  away team in 3189. ()

The following year, he served as one of the delegate who represented the Trill at the conference of Federation member worlds and allies to decide on the actions regarding the Dark Matter Anomaly. ()

Commissioner-cum-delegate 2 

This individual first served as one of the commissioners who accompanied Vos,  Xi, and Leader Pav to meet the  away team in 3189. ()

The following year, he served as one of the delegate who represented the Trill at the conference of Federation member worlds and allies to decide on the actions regarding the Dark Matter Anomaly. ()

Eliminated initiates 
These fifty-seven initiates were personally eliminated from the program by the  symbiont dating back over a period of 200 years. In 2370, after learning this, Arjin initially asked to be reassigned upon hearing his field docent was to be Jadzia Dax. ()

Federation starship personnel

FNN assistant 

This female worked as an assistant for the Federation News Network (FNN) near the end of the 24th century. ()

Guards 

These two guards, under the direction of Commissioner Vos, attempted to apprehend Adira Tal and Michael Burnham in 3189, though Burnham was able to quickly stun them in combat. They later accompanied Leader Pav to the Caves of Mak'ala, where they assisted Xi in monitoring the symbiont pools until Tal and Burnham emerged. ()

Guardian (24th century) 

This guardian visited Deep Space 9 in 2371. ()

Guardians (32nd century) 

These two guardians accompanied Xi to meet the  away team along with Commissioner Vos and Leader Pav in 3189. ()

Jadzia's family

Mother 
This woman was the spouse to Kela, and the mother of at least two children, Jadzia and her sister; she lived into the 2370s. Since her daughter was in Starfleet, she would worry about her daughter's safety. Jadzia, in turn, recorded "last messages" in case she did not come back from a mission. 

In 2372, prior to a battle, Jadzia assured Miles O'Brien that he would live to a ripe old age, and told him she'd put his latest "last message" to his wife and daughter next to her message to her mother. ()

Sister 
This woman sent her sister, Jadzia, several es in 2372. Jadzia found them to be "really ugly". ()

Unlike Jadzia, she was not joined.  ()

Joining attendees 

These nine individuals were present when the Dax symbiont was transferred from Curzon Dax to Jadzia Dax. Six of them wore medical gowns, including a female surgeon, the remaining three wore civilian clothes. ()

Odan's male hosts

Host 1 
This host was said to be Crusher's lover's father. He knew Leka Trion and had kept the people of Peliar Zel II at peace for several generations. In reality, he was the prior host of the Odan symbiont. The younger hoped his efforts would be as successful as the elder's. ()

Host 2 

This host was originally believed to be Odan, but was in reality only a host body to the symbiont. Upon nearing death in 2367, he ordered Beverly Crusher to save the symbiont and not the body housing it. ()

Peers' hosts 
These seven hosts all carried the Peers symbiont prior to its joining with Selin Peers. At least one, the first, was a woman. As of 2369, Selin Peers still recalled the symbiont's memories from that time. ()

Symbiosis Commission doctor 

This doctor was working for the Symbiosis Commission and was murdered by Joran Dax. ()

Symbiosis Commission guards 

These male and female guards were working for the Symbiosis Commission and helped to arrest Joran Dax for murder. ()

Symbiosis Commission nurse 

This male nurse was assisting Doctor Renhol with the treatment of Jadzia Dax at the medical facilities of the Symbiosis Commission. ()

Tal's hosts and family

Tal's hosts 
The hosts of the  symbiont before Admiral Senna Tal included Jovar Tal, Madela Tal, and Cara Tal. ()

Senna Tal's parents 
These individuals were the parents of Senna. When he was a child, they would sing a lullaby to him. ()

Tattooed female 

This female was getting a tattoo from a Klingon tattoo artist at the Orion embassy outpost on Qo'noS in 2257. ()

Woman at cabaret 

This Woman at an Orion cabaret in the Orion embassy outpost on Qo'noS was caressing and being caressed by one of the male Orion dancers, while Sylvia Tilly was speaking to an Orion in 2257. ()

Woman on Gaia

Background information 

In a deleted scene from , a Trill ensign was seen doing research in the  library. The scenes alongside Jonathan Frakes and Marina Sirtis were removed from the final version, but later included in the "deleted scenes" section of the Special Edition DVD release, which described the scene as scene #40 "Flirting". The ensign was portrayed by Max Grodénchik.
nl:Naamloze Trill
 
 Trill