Unnamed humanoids ( 24th century ) These are unidentified humanoids species observed in the 24th century . Alpha and Beta Quadrant . Abducting aliens . These alien s were an intelligent species and civilization with advanced technology . Their physical appearance was characterized by a large bald cranium , a large chin and large nostrils and light brown skin . They were dressed in blue leather - like jumpsuits . They had the ability to form links between themselves telepathically , so that they were in continual contact with each other . Their culture was heavily influenced by the fact that each individual was identical , so that distinctions between themselves were meaningless . Consequently , they did not have leaders or followers . They also did not have a concept of morality . Their technology included transporter s which could also replicate living matter , including the complex patterns of the brain . In 2366 , a group of them decided to study the nature of command . To this end , three beings were responsible for kidnapping members of other species which reacted differently to authority . They kidnapped Captain Jean - Luc Picard , a Mizarian , Kova Tholl , and a Chalnoth , Esoqq . Another being also entered the cell to observe them , taking on the identity of a Bolian Starfleet cadet , Mitena Haro . The cell was designed with tests in mind to give them goals to achieve , and setbacks to deter them when they didn ' t work together . Meanwhile , the group created replicas of the three individuals to resume their lives and test aspects of command there . For example , Picard ' s replica gave increasingly strange orders to gauge reaction . After Picard discovered what happened , they returned him to the " Enterprise " since the experiment is now ruined . He trapped the two aliens with him in a force field . They pleaded to be let go . After Picard showed them what it ' s like to held against one ' s will , that kidnapping is wrong , he dropped the force field and ordered them off his ship . ( ) Beachgoers . Swimmers . Several aliens visited the same beach , Deanna Troi and Reginald Barclay visited in 2377 . A couple of aliens with pointed ears and green spotted sides and foreheads came out of the water . A man with a large nose was buried into the sand by two females . ( ) Cabana boy . A bald alien with mottled green skin and a vertical line of small ridges , running across his forehead and chest was working as a waiter at a beach that Deanna Troi and Reginald Barclay both visited in the year 2377 . He handed Barclay a tray of two chocolate passion punch es that he had ordered . ( ) Deep Space 9 . Odo ' s wanted poster criminals . Several individuals appeared as criminals on wanted poster s displayed in Odo ' s security office on Deep Space 9 from 2369 to around 2372 , including Gul Dolak , Praetor Neral , Orta , Plix Tixiplik , Villus Thed , as well as a Ferengi and Klingon criminal . Buck - toothed alien criminal . This individual was a criminal whose face was displayed on a wanted poster in Odo ' s security office aboard Deep Space 9 in 2369 through 2372 . ( , , ) Space hooker . This humanoid female was a employed as a hooker who worked a bar on Qualor II when the " Enterprise " - D visited the planet in 2368 . Commander Riker visited the bar when he was investigating the theft of surplus Vulcan ships and materials . ( ) For several years thereafter , she appeared as a criminal displayed on a wanted poster in Constable Odo ' s security office aboard Deep Space 9 from 2369 through 2372 . ( , , ) Earth visitors . Antwerp Conference attendee . Members of this species had dark and light brown skin , with stripes intermingling the two shades of brown along the length of their heads . They also had elongated heads . One member of this species attended the Antwerp Conference and was among the casualties when it was bombed . ( ) Pink - skinned bald alien . " By 2372 , members of this species had also traveled to Earth ; one female member of this species walked along the streets of San Francisco and came very close to Harry Kim ' s former apartment . " ( ) Harod IV miners . These seven alien miner s were working on Harod IV and were stranded on the planet in late 2368 . They were picked up by the and transported to their next destination aboard the ship at the same time as Kamala was transported aboard the ship . When the empathic metamorph entered Ten Forward , she caused quite a stir among the miners because of her beauty . They quickly surrounded her and said suggestive things , to which Data called them rude . For a short time , Kamala adopted the rough personality that appealed to the visiting miners . She egged them on by asking what drink they like . When they replied Aldorian ale , she said that it was her favorite too . Data , who was assigned to be her chaperone , sensed trouble and escorted her out , with the assistance of Worf who intimated the miners . Two of these aliens were characterized by yellow skin and facial ridges that looked rather similar to Cardassian ridges , two of them by grey skin ridges on the forehead and barbels at the side of the mouth and underneath the lower lip , and others by brown skin , a number of facial ridges and protrusions and large cheekbones . ( ) Sappora VII miners . These miners worked in the Tigan family ' s pergium mining business on Sappora VII in 2375 . ( ) Delta Quadrant . Akritirian prisoner . This alien prisoner was held at the Akritirian maximum security detention facility in 2373 . He had peaked ears , a mottled grey skin and a prominent cranial ridge on his forehead . ( ) Antarian Trans - stellar Rally guests . These humanoids partook in the Antarian Trans - stellar Rally pre - race ceremonies on the USS Voyager in 2377 ( ) Borg Collective . Alien man in Unimatrix Zero . This alien man , a Borg drone in real life , appeared in Unimatrix Zero after the nanovirus was released into the Borg hive . When Seven of Nine asked him if he remembered who he was or what ship he was on , he answered that he did not . ( ) Reptilian . This " ' individual with bumpy reptilian skin " was encountered and assimilated by the Borg prior to 2373 . An image this person appeared during one of Seven of Nine ' s guilt - induced hallucinations after her encounter with a Borg vinculum . ( ) Tailhead . This individual with tailhead was encountered and assimilated by the Borg prior to 2373 . An image this person appeared during one of Seven of Nine ' s guilt - induced hallucinations after her encounter with a Borg vinculum . ( ) Unimatrix Zero members . These humanoids were Borg drone s that expressed their individuality in a place called Unimatrix Zero during their regeneration . One of them , Axum , contacted Seven of Nine and asked her for help to employ a nanovirus into the Borg Collective and help the drones to retain their individuality . The crew of the helped these humanoids and started a war with the Borg Queen . Several Borg attacked them in Unimatrix Zero and they gathered and defended themselves with traps and weapons such as the Klingon " bat ' leth " . At the end they returned to their Borg sphere s and Borg cube s still having their individuality . ( ) Markonian outpost . Markonian outpost station manager . An unidentified alien worked as station manager aboard the Markonian outpost in the Delta Quadrant in 2376 . He failed to inform Captain Kathryn Janeway that a vine she had been given was prehensile . ( ) Markonian outpost visitors . Several members of unknown species visited the Markonian outpost , located in the Delta Quadrant , in 2376 . They also took part in a technology and cultural exchange with the and visited the bridge , engineering , and the mess hall . Among these species were one with long , pointed ears , a blue skinned one , and one with long light hair and a prominent forehead . ( ) Mikhal bar visitors . These alien bar visitors were present at a lodge at the Mikhal outpost when Captain Kathryn Janeway and a Mikhal traveler , called Nakahn , were engaged in conversation . He was telling the captain an incredible story of one of his travels . Among them were two females and two male aliens . ( ) Mokra - controlled planet aliens . These alien species were living on a Mokra - controlled planet in 2372 . They visited the marketplace when an away team of the was attacked and imprisoned by soldiers of the Mokra Order . ( ) Nekrit Expanse . Map dealer . A member of this humanoid species had a shop on a trade station near the Nekrit Expanse in the Delta Quadrant . Neelix met with him in hopes of obtaining a map of the expanse . The dealer told him that there were no maps of the expanse , as it was too unstable to chart . ( ) Mercenary alien . This mercenary alien was hired to protect Tosin . ( ) Pink - skinned bald alien . This pink - skinned bald alien , of a species often found in the Alpha Quadrant , was also on the space station close to the Nekrit Expanse . This alien was present on the station when the crew of the was there and later helped the Voth scientist Forra Gegen create an image of the outer appearance of Human s . ( ) Ord ' mirit mining vessel commandant . This individual was the commandant of an Ord ' mirit mining vessel encountered by the Silver Blood in orbit of a class Y planet in 2375 . He contacted the " Voyager " and asked them to leave the planet and its orbit immediately . ( ) Quarra . Pink - skinned aliens . Three workers of this unidentified species were employed on the planet Quarra . One was stopped and questioned by Kathryn Janeway who was lost and looking for her work position at the Central Power Facility , he pointed her towards the supervisor ' s office , and told her " over there " . ( ) All three later sat together in the local tavern . ( ) Ridged forehead alien . This alien had a Human appearance but featured a prominent ridge from the nose up to the forehead . A member of this species was held as slave worker at the Central Power Facility on Quarra in 2377 . ( ) Ridged nose alien . This alien had a Human appearance but featured a prominent ridge on the upper nose part of the face . Two members of this species were held as slave workers at Central Power Facility on Quarra in 2377 . ( ) Sobras . Sobras bar patron . This alien was located in a Kazon - Pommar bar on Sobras . It was seated at the bar when Neelix asked the bartender about his " friend " Tersa . ( ) Sobras dancer . A female member of this species was seen dancing in a Kazon - Pommar bar on Sobras . Tersa informed Neelix that this dancer behind him had shown him the puzzle he was completely engrossed in . He added that the first man to solve it , and move only two rods to change it from a dodecahedron to an icosahedron , would have the privilege of spending the night with her . Neelix took a seat at Tersa ' s table and offered to help with the puzzle if the Kazon Jal agreed to listen to him first . ( ) Tau ' s city traders . Alien buyer . This alien buyer was attempting to broker a deal with , a leader of pirate s who stole technology from various starship s . Tau told him he could provide him with all the weapon s he needed , even a ceremonial spear . When the buyer said Tau ' s price was too high , Tau threatened to sell the weapons to the buyer ' s enemies instead . ( ) Alien visitor . This alien visitor was invited aboard the to discuss a deal for a warp coil . This was just a ruse , in order to question him concerning stolen " Voyager " technology . He was in possession of a tricorder , a compression phaser rifle , and was wearing a command division Starfleet uniform . He admitted that he had purchased the items from a man named , a leader of pirate s who stole technology from various ships . He did not know where Tau was , as he always dealt with a go between . In return for his information , he was permitted by Commander Chakotay to keep the items he ' d acquired , a deal which did not particularly impress him . ( ) Commerce planet visitors . Several members of unknown species visited a planet in the Delta Quadrant in 2374 to conduct business . The away team from the USS " Voyager " questioned some of them about their stolen technology . Additional visitors include a member of Pardshay ' s species . One of the alien visitors was of a species also frequently seen in the Alpha Quadrant . ( ) Tsunkatse events . Male fighters . Three alien fighters participated in the Tsunkatse matches during the time , Seven of Nine and Tuvok were held prisoners by Penk . The first fighter fought a match against the Hirogen fighter but lost . The second one trained with the female fighter in the quarters . The third alien fighter was present in the quarters when Seven of Nine was forced to comply and when the Hirogen fighter trained her . ( ) Female fighter . This female alien took part in the Tsunkatse matches in the Delta Quadrant when Seven of Nine and Tuvok were held prisoner s by Penk , the fight coordinator . She trained with another opponent in the quarters and fought a match against a Kradin . ( ) Spectators . These aliens were part of the audience of several Tsunkatse matches near the Norcadian homeworld in 2376 . One alien was a member of a species with roughly triangular heads and pointed ears , which was also found in the Alpha Quadrant . Another alien was a member of a species with a long face , which was also found in the Alpha Quadrant . Yet another member of a species with a tailed head , which was additionally found in the Alpha Quadrant . ( ) Other unspecified locations . Alien captain . A distress call from this alien , captain of a starship , was received by the crew of the " Voyager " in 2375 . He died along his crew after being trapped in the chaotic space for over one year and experiencing hallucination s . ( ) Buck - toothed alien . Remnants of these buck - toothed aliens , who were often found in the Alpha Quadrant , were discovered by the crew of the in 2374 . That year , the " Voyager " crew discovered that the Hirogen had hunted this race , after coming across the eviscerated skin from an individual . Upon discovering the skin , Seven of Nine pointed out that the Borg found a similar instance done to members of Species 5174 . ( ) Later that year , the skull of a member of this species was located among the many trophies aboard a Hirogen warship encountered by " Voyager " . ( ) Hostile alien . This hostile alien launched an unprovoked attack against a USS " Voyager " shuttle . ( ) Another member of this species was in the audience of several Tsunkatse matches near the Norcadian homeworld in 2376 . ( ) Salvage aliens ' species . These salvage aliens were a trio of humanoids that confronted Janeway and Tuvok over the contents of a Borg debris field . After Janeway had salvaged a replacement cortical node from a Borg drone for Seven , the salvage aliens beam ed aboard , claiming salvage rights to the debris field . A fight ensued and they were beamed out by Tom Paris , aboard the " Delta Flyer II " . The shuttle then fought its way past the Salvage Aliens ' vessel s and returned to " Voyager " . ( )