Look at the link below.
In this short video Eli Simon an American Professor of Drama identifies 2 types of clown-The Inner Clown and the Outer Clown. The former is self possessed and confident while the latter is sad and something of an out cast. we will soon be beginning to develop your own characters. You might want to consider how you will develop your characters. Simon's ideas may be a starting point
http://www.youtube.com/watch?v=pZ57_prZ9e4
