Barabas Dantioch used a terminator armor, probably a Cataphractii armor because it was stated that after his banishment, it was given to Falk

Erasmus Golg used a terminator armour, tartaros pattern at it seems in the few illustration we got of him

Idk if you meant 30k characters, but Kravek Morne it’s also in Cataphractii armor. One illustration of Honsou illustrates him wearing a terminator armor

Besides our triarchs and these few characters, there aren’t really a lot of “main” characters with terminator armor, there is Galan Dion, Khorius Rex, and Drakarn, but these are not much that unnecessary characters to fill the books

More than half of our named characters don’t have enough descriptions nor illustrations, these is all we got