Hardcore/Screamo/Post-Hardcore Bassists

[anthowl]

matt manning of from first to last,
Jeph Howard of the used..

a lot of the dudes on my list of influences would be good for you to check out actualy.
lots of screamo/post hardcore with really standout bassists.

 

[Luke S Mouse]

The bassist from the Dead Kennedys was doing interesting things, not really hardcore though. I'm pretty sure there are some creative bassists playing this style, but I have no name in mind at the time being.

Klaus Flouride