Angelo Rocha

Features: 
– Lists available roles; 
– Add custom roles; 
– Delete custom roles; 
– Permissions based on custom roles; 
– User management; 
– Adds more than one role for a user; 
– Set default role for user without roles; 
– Access to admin menu by role; 
– Auto add role to new users; 
– Show/Hide admin bar to specific roles; 
– Show/Hide Widgets on admin/front to specific roles; 
– Show/Hide individual sidebar widgets to specific roles; 
– Content access by user role;

WPSS Ultimate User Management

This plugin allows efficient management of users, roles and capabilities. Create, edit and delete user permissions faster and easier.

Pitabas

NetTantra

This plugin asks the user to choose his role in the website during registration from a list of selected roles. It works with BuddyPress also. It provides an interface from where the admin can choose which roles to display during registration for the user to choose from.
<h4>About the Developer</h4>
This Plugin is developed by NetTantra Technologies – a team of open-source enthusiasts and WordPress experts. NetTantra designers and developers work relentlessly to bring code to life so that WordPress users don’t have to do the hard work.
For professional support, you can get in touch with the NetTantra Team at <a href="mailto:wordpress@nettantra.com" rel="nofollow ugc">wordpress@nettantra.com</a>

WP Roles at Registration

This plugin asks the user to choose his role in the website during registration from a list of selected roles. Works with BuddyPress also.

WPSS Ultimate User Management vs WP Roles at Registration