Julian, whose alias is "Pluto", is the last model of the Third series, and the only male. He helps Naomi discover her true identity and her origin. An adept hacker, Julian attempts to help Armitage by delving into the files surrounding the creation of the 'Thirds'. His attempt however, is hijacked by the assassinroid D'anclaude who controls him via a planted computer virus. Armitage destroys the viral link, but it also causes Julian's body to self destruct. His last words to her is that maybe he'll get to meet the 'real' D'anclaude.

Sometime after his death, Armitage mourns his loss until Ross reminds her that Julian had backed up his programming into the main registry. Therefore, it might be possible to bring him back.

(Source: Wikipedia)