Which character displays a caring attitude towards other characters, particularly Buck?

The character that displays a caring attitude towards Buck and other characters is John Thornton. Throughout "The Call of the Wild," Thornton demonstrates deep compassion and loyalty, particularly in his relationship with Buck. He rescues Buck from a precarious situation when he is being mistreated by Hal and Mercedes, providing him with the kindness and respect he deserves. Thornton shares a special bond with Buck, leading to a strong sense of mutual loyalty and trust. This caring attitude is evident in the way he treats Buck as an equal, supports him during hardships, and manages to see his true potential. Thornton's character embodies the themes of love and respect for animals, making him a pivotal influence in Buck's transformation throughout the story.