How are crooks and candy characterized similarly in the novel of mice and men?

Crooks and Candy are both marginalized characters in "Of Mice and Men". They are both isolated and lonely on the ranch due to their physical disabilities - Crooks is a black stable hand who faces racial discrimination, while Candy is an older, disabled ranch worker who is ostracized because of his age and physical condition. Additionally, both characters express feelings of powerlessness and dreams of a better life that ultimately remain out of reach.