Too true, too true.
Accent are awesome! whether or not we find any in the series is the clincher. Welcome to the project, you may want to check out the cast list on page one to see any characters you want. If you can think of any characters not on the list, be sure to grab 'em.
though I don't think it's been updated lately, I've taken the roles of Jake's father and The Drode.
If you want the best quality in your recordings, i suggest bactracking this forum and downloading the Audacity (It's free!) software that wild suggests and using that instead of the standard Sound Recorder. Unless of course, you already have an audio recording software.