The_High_Dweller at 2011-01-12 14:54:20:
Nice breakdown, but I'd have to argue strongly that Cogburn is the Trickster archetype.
It's a bit of a stretch to place Mattie's father in the Trickster role, as his presence is hardly felt at all. We hear and sometimes feel how strongly Mattie was to avenge her father's death, but at times it seems this journey could have been sparked by any number of reasons -- but the point of the journey is for her to grow into the woman she was meant to be.
Mattie is a very serious, focused girl. She enlists Cogburn's help because she believes he is the same way... and has the skills to do to Chaney what she can't. But she soon finds that Cogburn is not as serious and focused as she first thought. He is selfish and uncaring about her situation. He tests her every step of the way, whether is be testing her patience, her will, or her courage. This, of course, is what a Mentor does, but it is the WAY he tests her that makes him the Trickster.
One need only watch the scene when Cogburn has gotten sloppy drunk off the confiscated whiskey to see that he is not only the Mentor, but the Trickster as well. (Very, very funny scene BTW).