Andreas Bruhn
From SistersWiki.org - The Sisters Of Mercy Fan Wiki
Andreas Bruhn played guitars and wrote part
of the music for The Sisters Of Mercy's album
Vision Thing.
He continued as live guitarist with The Sisters
'til the end of the 1993 tours.
There is an interview with him here,
(courtesy of those nice folk at myheartland.co.uk)
For those interested further, see this two-part
interview with Andrew Eldritch and Andreas Bruhn
by MTV in 1990 at the Fishmarket in Hamburg
here (PART 1) and here (PART 2)
Andreas Bruhn left The Sisters of Mercy to bring forward his own band project Broon.
For his most recent biography/discography see Andreas Bruhn @discogs and of course Andreas Bruhn.com.