Thierry is a Belter dockworker.
Some time in the past, Thierry arranged to get an OPA logo tattoo on his right forearm.
Throughout the seriesEdit
In "Remember the Cant", Miller tries to rouse the attention of Anderson Dawes by having Star Helix search crates on the docks. Thierry asks Miller about the bird that was sacrified for the feather in his hat.
In "Windmills", after Miller is fired, he heads to the OPA bar to find Anderson Dawes. On his way in, he is greeted by Thierry with "Detective Chapeau!" Miller promptly knocks him down with a single right-handed hook punch.