The epic supplies a list of all hundred names and then uses almost none of them. Duryodhana is the eldest and the leader. Duhshasana is the hand that carries out what Duryodhana decides, and he is the one who drags Draupadi by the hair. Beyond those two the poem individuates only a handful, and the hundred function as a quantity: a body of brothers who ride out, are counted, and are killed by Bhima, who has vowed to kill every one of them.
The exception is worth naming. In the dice hall, when Draupadi puts her question and the elders will not answer it, the man who does answer, and answers in her favour, is Vikarna, one of Duryodhana's own brothers. He argues that a wife staked by a man who had already lost himself was not lawfully staked, and he is shouted down by Karna and by his own family. He fights and dies on the Kaurava side regardless. A single dissenting voice inside the hundred is more useful to the poem than ninety nine more names.
There is also a sister, Duhshala, married to Jayadratha of Sindhu, whose killing by Arjuna in revenge for Abhimanyu is one of the pivots of the war, so that the marriage alliance the hundred made becomes another line of the same slaughter.
And there is Yuyutsu, a son of Dhritarashtra by a woman of the household rather than by Gandhari, who crosses to the Pandava side before the fighting begins and survives it. He is the only member of that generation on the Kaurava side to outlive the war.