Unique/Oddball vocal performances

[OpenSores]

I'm surprised nobody has mentioned Alan Averil here. I think he has great range and is unique. Primordial definitely stand out with his vocals, and the music of course

Blood Revolt - Indoctrine  mentioned, love his vocals on the album I've it playing as I type and think it works well.

[Pagan Saviour]

Where is he on TGST? I could never figure out which parts were his.

It says on the lyrics pages it'll say "Seth screams on this" or "Seth Screams here"

Stick the title track on headphones, the opening screams are a combination of Phil and Seth.

Edit. It's there on Wikipedia

Seth Putnam of Anal Cunt - Additional vocals on "The Great Southern Trendkill" "War Nerve", "13 Steps to Nowhere" , and "Suicide Note Pt II".

[Eoin McLove]

I think he makes an attempt on None So Vile, but trying to read along to Blasphemy Made Flesh is an exercise in total and utter futility