The main characters are:
* C. Henry Drummond: A fictionalized version of Clarence Darrow, the defense attorney for Scopes.
* Matthew Harrison Brady: A fictionalized version of William Jennings Bryan, the prosecuting attorney.
* Bert Cates: A fictionalized version of John T. Scopes, the teacher on trial.
* Rachel Brown: A love interest of Bert Cates and daughter of the town's newspaper editor.
* Rev. Jeremiah Brown: A town minister and Rachel's father.
Perhaps you are thinking of a character from another play or movie? If you can provide more information, I can help you identify the character you are interested in.