 When the role of Martin Brewer (Tyler Hoechlin (qv)), the son of  an U.S. soldier originally went out to be cast in May 2003 for the  next season the characters original name was Joe. He was also  supposed to be a bad kid who would create a lot of trouble for  Ruthie Camden (Mackenzie Rosman (qv)) and the rest of her family.  Although, once actor Tyler Hoechlin was cast in the role they  changed the name of the character as well as the personality of the  character to fit more into the family fold.