What character(s) should we add?

We are currently investigating the possibility of continuing our series based on feedback and support.  While we do so, we'd like to pose a question to our followers/fans/readers - what character(s) would you like to see in a continued or future series?  We've thrown this question out into the social network sphere but would also like your opinion here.  Would it be the wizard Prospero? The battling sweethearts Beatrice and Benedick?  A little-known character?  A well-known character?  We're all ears...