Hey guys .. can u help me please??

i have to right a one page speech about one courageous character that i have to choose from this book.. have u ever read this book? " To Kill A MockingBird??? please if u have.. give me some ideas of what should i write about .. i have to say that that character is the most courageous character in the book because he did .......... and i have to contrast him to other 2 characters.. please hlp me.. 10 points for the best answer :)