The following is a brief summary of major NPCs and what is publicly known about them.
| Name | Details | Sessions present | Played by |
|---|---|---|---|
| Computer | Computer's meeting avatar | Session 1, 2, 4 | Gemma, Roisin, Dave |
| Yuna Senka Red | Head of Red Sector | Session 1, 2 | Gemma |
| Kalys Rainbow | Head of Engineering | Session 1, 2, 4 | Gemma |
| “Tiny” Red | Girl in early teens | Session 1 | Gemma |
| Mira White | Head of White Sector | Session 1, 4 | Roisin |
| Jenny Green | Head of Recycling | Session 1, 4 | Roisin |
| Jes Black | Lizard Stew Seller | Session 1, 4 | Roisin |
| Logan Rainbow | Plays Colleen Whitesider | Session 1 | Roisin |
| Sven Butterfly Rainbow | Head of Rainbow Sector | Session 1 | Dave |
| “Hawk” Blue | Head of Navigation | Session 1, 2 | Dave |
| Billy Red | NGF Fan | Session 1 | Dave |
| Lucas Blue | Head of Blue | Session 1 | Elliot |
| Manny Blue | Blue Harmony Manager | Session 1, 2, 4 | Elliot |
| Craig Rainbow | BOB Rat Artist | Session 1, 2, 3, 4 | Elliot |
| Andreas Viteri | “Head of Childcare” | Session 1, 3, 4 | Elliot |
| Ferris Red | Session 3 | Elliot | |
| The Man of No Particular Colour | Mysterious guy | Session 3, 4 | Elliot |
| Wolf Red | EMT / Celebrity | Session 4 | Elliot |
| Evanescence Rainbow | Rainbow artist | Session 1 | Jen |
| Marcia Blue | Blue liaison to Engineering/BOB herder | Session 1,2,4 | Jen |
| Jocelyn Green | Administrator Prime, Cartographers | Session 1 | Jen |
| Mei Mei White | Pinup-cum-BOB herder extraordinaire | Session 1,3 | Jen |
| Thursday White | Marshal and NGF player | Session 1,3,4 | Jen |
| Friend Albus White | Friends of Computer preacher | Session 1 | Jonathan |
| Six-Finger Jack | Has six fingers | Session 1, 3 | Jenny |
| Jenny Red | Coach of Engineering, formerly Red | Session 1, 3 | Jenny |
| Laura Blue | Head of Health | Session 1, 3 | Jenny |
| Justice Rainbow | Photographer | Session 3 | Jenny |
| Jan Viteri | Red NGF player, and currently coach of Red | Session 2 | Gemma |
| Ace Black | Messenger boy | Session 2 | Dave |
| Grand Adept Ohara | Cult of the Singularity member | Session 2 | Dave |
| Isosceles Blue | Navigator of no note | Session 2, 3 | Jen |
| Sue Green | Chad Fangrrl | Session 2 | Jen |
| Celia Red | Crusher fan—Lost the shirt off her back | Session 2,3 | Jen |
| Sarra Black | Callie Fangrrl | Session 2 | Jen |
| Claire Red | Tiny's Mother | Session 3,4 | Jen |
| Dorrie Blue | Girl in mid/late teens | Session 4 | Gemma |
| Allie Viteri | Session 4 | Roisin | |
| Alloy Blue | Engineer | Session 4 | Jen |
| Chloe White | stranded on toroid 3 | Session 4 | Jen |