TrueFalse

Lightweight plugin that overrides the default widget “recent comments” in WordPress, adding an avatar display visitors comments and quotes length of 50 characters.
Is a direct descendant of WP_Widget_Recent_Comments.
Example markup that is generated by the plugin(for theming):
<pre><code><ul id="recentcomments">
 <li class="recentcomments">
 <div class="alignleft">
 <img width="32" height="32" class="avatar avatar-32 photo" src="http://0.gravatar.com/...%3D32&amp;r=G" alt="">
 </div>
 UserName: excerpt comment <a href="http://example.com/page/#comment-ID">»</a>
 </li>
 <li class="recentcomments">
 ...
 </li>
</ul>
</code></pre>

WP Recent Comments With Avatars

Adds avatars and announcements comments. Compact code.

Avram

AVrAmTAR.com is service which allows user to register and upload multiple avatars in their account. After that user will get his unique URL to the dynamic GIF image which will show different avatar (chosen from avatars user have uploaded) each time URL is accessed.
This plugin will add AVrAmTAR.com avatar next to users’ comments on your WP-powered blog.

AVrAmTAR

Adds AVrAmTAR.com avatar next to users' comments on your WP-powered blog.

WP Recent Comments With Avatars vs AVrAmTAR