Pwccm

Pwccm was a demon allied with the sentient particles known as the Dark, of the same race as Abaddon. He was an enemy of both Abaddon and the Light. He resembles Abaddon in appearance but has skin a royal blue in color.

Biography
Pwccm has been in Cardiff beneath the surface for countless ages, emerging to wage war on Abaddon either to take control of the Rift or to escape it. Like Abaddon, he allied himself with a group of living light particles native to the Rift, the Dark, and acquired a human follower, Cafard Manger.

In 1876 their battle erupted onto Bute Terrace where Abaddon faked his defeat and Bilis Manger, foreseeing the Dark's potential triumph, set in motion a series of events to protect the Light until the moment was right for them to act.

With the death of Abaddon in February 2008, Pwccm and his allies were able to imprison most of the Light. He sent the Dark to openly combat the Light in Cardiff. However in August 2008, Bilis Manger and Torchwood 3 were able to successfully imprison the Dark in a wooden box and send the Light down to imprison Pwccm. (TWN: The Twilight Streets)