John Godley

A widget that shows a section of comment text along with the author name.
<ul>
<li>Show extended comment information</li>
<li>Configure the number of comments used</li>
<li>Exclude certain authors from the list (such as yourself)</li>
</ul>

Extended Comments Widget

A widget that shows a section of comment text along with the author name.

sinan isler

This plugin does default wordpress widget but without links. It is only shows name and comment.
Features
This plugin add last comments widget your widgets area. 
Different is; default last comments widget have commenter URL but this widget show only name and last comment text. 
It cant show url or author web address.
<a href="http://www.sinanisler.com/" rel="nofollow ugc">WordPress Tema</a>
<h3>Arbitrary section</h3>
None

Last Comments Without Links

This plugin does default wordpress widget but without links. It is only shows name and comment.

Extended Comments Widget vs Last Comments Without Links