The DarkAlien was a unique xenomorph entity created during the events of Witchblade/The Darkness/Aliens/Predator: Mindhunter - it was the result of xenomorphic infection within a darkling, a type of demon connected to the titular Darkness.

Being a demonic entity the DarkAlien shared the same abilities as a darkling as well as those of a xenomorph, making it an all but unbeatable opponent until it eventually met its demise when the space station it was born in was destroyed (presuming the explosion killed it, since xenomorphs seem capable of surviving in space).