First encountered in The Fifth Elephant he is the largest troll ever to be in the Ankh-Morpork City Watch, Bluejohn is a very effective riot shield. He is named after Blue John, a bright blue mineral once mined in Derbyshire, England.

A troll in the Ankh-Morpork City Watch made Sergeant by Fred Colon during his short and tumultuous reign as Captain of the force (see The Fifth Elephant). Flint seems considerably less apt at being a sergeant than Detritus is, and it is unclear whether Flint has been able to keep his rank.

In Men at Arms, a Flint is one of two trolls (the other is Moraine) working in the City armoury, who Detritus signs up to the Watch. This is likely the same troll.

First troll member of the Ankh-Morpork City Watch, hired under Lord Vetinari's "special hiring procedures", at the same time as Cuddy (a dwarf) and Angua (a werewolf). Before getting this job, Detritus had been a splatter (like a bouncer, but with more force) and hired muscle for various establishments in Ankh-Morpork. However, he came unstuck one night when instructed to splat six-foot Dwarf Carrot Ironfoundersson, who no doubt, had been brought up by Dwarfs to have an appropriately robust and non-nonsense attitude to any troll who tried it on. The fact Carrot laid him cold must have helped simplify things later in their Watch relationship, as regarding rank and seniority.

<p align="right"><a href=http://wiki.lspace.org/wiki/Detritus>more...</a></p>

A Troll percussionist: he actually played tuned rocks rather than conventional drums, leading to the term Music With Rocks In. He met Glod Glodsson and Imp y Celyn at the Musicians' Guild when all three of them were there to get guild licenses. They then created The Band With Rocks In, Lias taking the stage name "Cliff", and Imp becoming "Buddy".

A troll mentioned in The Light Fantastic (not to be confused with Breccia, a troll crime syndicate), whose name mirrors Roundworld's breccia.

In Moving Pictures, she is briefly an actress (Ginger greets her in the Nodar Borgle's "canteen"), and we also learn she is cousin to Galena.

A troll who was taken aback one day to be cheerfully hailed in the street by Carrot.

A troll mentioned in The Light Fantastic, whose name mirrors Roundworld's beryl.

Troll potter based in Ankh-Morpork, during Feet of Clay his stores were robbed for clay.

Mentioned in Witches Abroad and Troll Bridge, this troll works at (or possibly runs) a sawmill in Sour Water, and sells coffins at a good price. He employs his brother, Mica, part-time.