A microscopic species introduced in the 2025 film Star Trek: Section 31, whose members interact with larger beings by piloting full-sized mechanical bodies, such as the Vulcan-shaped one driven by the operative Fuzz.
The Nanokins appear in Star Trek: Section 31. They are far too small to be seen unaided, so they build conveyances, humanoid machines steered from a tiny craft inside, in order to deal with other species.
The film's Nanokin is Fuzz, played by Sven Ruygrok, a member of the Section 31 team sent to recruit Philippa Georgiou. His conveyance looks like a Vulcan, but his loud temper and habit of laughing are anything but Vulcan. He has a mate, Wisp, and many children.
Fuzz turns out to be the traitor on the team, secretly working with Georgiou's enemy San. He takes control of his teammate Zeph's exoskeleton to sabotage the mission and kill him, and is apparently killed in an explosion. In the closing scene Wisp, who believes he survived, arrives in a Vulcan conveyance of her own and joins the team.