Specialist is the umbrella term for Travelers with very specific skillsets and missions that do not fall into the standard pattern of the five-person Traveler team. Colloquially speaking, it can also refer to Grant MacLaren's teammates whenever someone asks his credentials; him as an FBI agent and his young-looking companions as "specialists".
- Main article: Programmer
- Main article: Doctor
- Main article: Archivist
Solo[]
Solo Travelers are often created with a single purpose, running the gamut from test subject to disposable bodies to infiltration.
- Vincent Ingram (001) - proof of concept Traveler
- Simon Teller (004) - tasked with creating the Traveler communications network in the deep web
- Carrie (5001-5007), Wayne (5008 and unidentified Traveler), Trucker (5009) - reinforcements for the Core Traveler Team in securing the Fraser meteor, a Protocol Alpha mission
- Jeff Conniker (5416) - infiltrator against the Faction
- Andrew Matthias Graham (7189) - black hole physicist sent to prevent the creation of the singularity engine
- Gleason and his men (Traveler numbers unknown) - used to activate the x-ray laser that deflects Helios-685 but destroys Van Huizen Corporation
- Ted Bishop (Traveler number unknown) - politician intended for higher office