I am a fan of compensating actors, especially talented voice actors. This site is probably good if you need someone to read narratives or want to find a special actor for a specific role or something along those lines. With that said, you can find some talented voice actors looking to get their name out there for free on the following sites:
Voice Acting Alliance
http://voiceactingalliance.com/board/forum.phpVoice Acting Auditions
http://voiceacting.proboards.com/board/13/voice-acting-auditionsI would recommend reading the guidelines as there are a lot of people who post for auditions without providing much information.
This is the format I usually use:
Introduction (What your film is about and links to 1-3 previous films you've made for references)
Cast (Write up about each characters along with a face or body pic - some voice actors like this)
Release Date (When you plan to release and where)
How to audition (How you want people to send in their auditions - email, etc)
Casting Deadline (The date and time the audition is over)
Credits/Other Info (Mention the work is paid or non-paid, whether you will give them credit in the film, copies of the film, etc)
Questions (If they have questions they can email you)
Edit: One thing I forgot to mention is that there are lot of people who get voice actors in on their projects and then never finish those projects. It's very important to be honest to your actors, if you foresee any trouble with production, or if it's possible it could take longer than expected. Having a track record of completing your projects will win over the talented VA's who lurk on the forums and weed out the projects that may not be completed.
IMDB: James Muia
Aviticus Dragon on YouTube
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