Role in the film
After Alex and Jack bury Dutch and continue on to Klondike City, Alex reunites with his lover, Belinda Casey. Although Alex has no intention of leaving town, he agrees to guide Jack to his father’s claim. They travel downstream to Grey Beaver’s village, and spend the night there at the chief’s invitation.
After Alex and Jack's fight with Beauty Smith, Alex and Belinda decide to marry and start a new life in San Francisco. They invite Jack to join them, but remind him that White Fang is not suited for city life, and should be set free. Jack releases the dog, but ultimately decides to stay in Alaska.