The following is a list of unnamed illusory Starfleet personnel.
Deep Space 9 nurse []
An illusory nurse on Deep Space 9
This nurse was part of an illusion created by Luther Sloan's mind in 2375, when Doctor Julian Bashir and Chief Miles O'Brien linked their minds with Sloan's. After Bashir woke up, Nurse Bandee told him that Sloan was dead, but Bashir ordered her to give him ten milligrams of cordrazine. (DS9: "Extreme Measures")
This nurse was played by an unknown actress.
Enterprise security guard []
A security guard
This security guard was an illusion created by the Vians in 2268 on Minara II, along with illusions of Montgomery Scott and Roger Lemli, to lure the landing party (James Kirk, Spock, and Leonard McCoy) and Gem into their trap. (TOS: "The Empath")
This guard was played by an unknown actor.
Picard's psychiatrist []
While Admiral Jean-Luc Picard was comatose in 2024 Los Angeles, he experienced an illusion of a routine psychiatric evaluation sometime late in his command of the USS Enterprise. The evaluation took place in his ready room and was often antagonistic in nature, as the psychiatrist – who held the rank of commander in the sciences division – accused him of being evasive and closed off, to the point that even a Betazoid couldn't get in. Because of this, the evaluator threatened to recommend he be relieved of duty, lest he pursue a suicide mission "just to feel something."
Eventually, with the help of Tallinn, Picard realized that the evaluation was false and that the psychiatrist had taken the form of his late father, Maurice. (PIC: "Monsters")
Like Maurice Picard, this Starfleet psychiatrist was played by James Callis.
While the Enterprise is never mentioned by name, Picard's mention of "[his] ready room" and the psychiatrist's uniform resembling those worn in the late 2370s and early 2380s likely places it sometime after Star Trek Nemesis.
Starfleet admirals []
Illusory Starfleet admirals
Three illusory Starfleet admirals, who greeted the USS Voyager on Earth, were seen by Neelix and the Voyager crew when the large bioplasmic organism dubbed the "telepathic pitcher plant" manipulated their minds, making them believe the ship had arrived home via a wormhole. (VOY: "Bliss")
These admirals were played by background performers Larry Fine, A. Margellon, and G. Roland, who received no credit for their appearance.
Starfleet officer at Orion colony []
A Starfleet officer
A Starfleet officer encountered by Captain Christopher Pike in a Talosian illusion simulating the Orion colonies. The officer was wearing a dress jacket Starfleet uniform, colored in operations division beige. This officer was quite taken by the illusory version of Vina, portrayed as an Orion slave girl. (TOS: "The Cage", "The Menagerie, Part II")
This Starfleet officer was played by actor Robert Phillips.
He was named "Loman Stocker (β)" in the novel The Children of Kings.
Uhura's crewman []
The M-113 creature in the form of a Starfleet crewman
A crewman encountered by Lieutenant Nyota Uhura was an image created by the M-113 creature. Upon meeting her, she asked if she knew him. He explained that she was thinking of someone like him and that he thought she looked lonely. Uhura seemed to think he was giving her a line. He then spoke Swahili to the communications officer, which surprised her. Before he could kill her, she was summoned to the bridge. (TOS: "The Man Trap")
This crewman was played by Vince Howard.
The Pocket TOS novel Across the Universe reveals that the creature appeared as Trent Ojuremi (β), a former friend of Uhura who failed to enter Starfleet Academy.
Wounded crewmember []
A badly-burned crewmember
In a brainwashing scenario devised by the Tilonian Suna at the Tilonus Institute for Mental Disorders in 2369, Commander William T. Riker witnessed this badly-burned operations division ensign being brought to sickbay after a plasma torch blew up right in his hands. (TNG: "Frame of Mind")
This wounded crewmember was played by Allan Dean Moore.
Zombie crewmembers []
Deceased crewmembers in the mess hall
In 2374, these zombie crewmembers appeared in a telepathically-influenced dream experienced by Captain Kathryn Janeway, telling her they died because she didn't take them home. They were comprised of two command division officers – one male, the other female – a male operations division officer, and a female sciences division officer. (VOY: "Waking Moments")
These zombies were played by unknown performers.
According to the episode's script notes, this "eerie scene" contains "four dead Voyager crewmembers sitting in chairs, their hair gray, their skin white and decaying, their bodies covered in cobwebs."