Andreas Bruhn
From SistersWiki.org - The Sisters Of Mercy Fan Wiki
Andreas Bruhn was the guitarist for The Sisters Of Mercy on Vision Thing, continuing as live guitarist until the end of the 1993 tours.
There is an interview with Andreas (courtesy of those nice folk at myheartland.co.uk) here.
For those interested further, there's a two-part interview
with Andrew Eldritch and Andreas Bruhn with MTV in 1990
at the Fishmarket in Hamburg on YouTube see: Part 1 and Part 2
Andreas Bruhn left The Sisters of Mercy to bring forward his own band project Broon.
Here's a link to the most recent biography/discography of Andreas Bruhn/Broon