Gregory Peck
I think Gregory Peck is very good in this movie. He shows a lot of strength and determination in a part that could easily have been much weaker.
Mitchum is great, but I feel that Peck matches him blow for blow throughout the movie wich makes it an exciting dynamic.
Although I prefer Scorsese's version I really appreciate the fine acting, writing and directing in this, and it`s interesting to compare the two.
A solid piece of filmmaking!