There are at least 2 artists under the name Mandark:

1) MANDARK is the solo alias of Taiwanese Indie Pop artist Tan-Chun Liang, most known for being the lead vocalist and keyboardist for the bands Sweet John and I mean us. She has released 3 singles and 1 EP and has also done work in film scoring for various mini films, animations and jingles.

2) Mandark is a dark ambient/extreme noise and soundscape project for West Australian born electronic music producer Boris Otterdam. Beginning in 2002 as a side project to Noistruct. Mandark creates both analogue and digital recordings, ambient isolationist style soundscapes, impromptu field recordings, extreme noise, spontaneous live synth compositions and dark and disturbing film score sound. influenced by power electronics, extreme and abstract noise, nightmares, sleep deprivation and film scores. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.