Stanley's indifference to life is occasionally interrupted by bursts of anger and violence, yet he mostly seems resigned. His lack of interest is clear from his untidy appearance; he is often unshaven, unclean, and only partially dressed. Despite discussing aspirations, he is reluctant to leave his home. As Lulu describes, he is "a bit of a washout."

During abrupt changes in mood that turn him aggressive, Stanley confronts his antagonists, Goldberg and McCann, and sometimes targets Meg. Following their initial interrogation, he kicks Goldberg in the stomach and menaces McCann with a chair. At the party, he attempts to strangle Meg and possibly assaults Lulu. However, by the conclusion, Stanley becomes submissive and docile, unable to resist or even express any objection to his destiny.