Final answer:
The high point of stylistic realism in characterization is best exemplified by Henrik Ibsen. His well-known plays like 'A Doll's House' tackled complex social issues and introspective character studies within a realistic framework, heavily influencing the development of realistic theater. While Chekhov, Shaw, and Strindberg also made significant contributions to realism, Ibsen is particularly noted for his depth of characterization.
Step-by-step explanation:
The high point of stylistic realism, in terms of the depth of characterization, is best exemplified by Henrik Ibsen. Ibsen, known as the father of modern realistic drama, dramatically changed theatrical conventions with his esteemed plays such as A Doll's House. He introduced characters who were shaped by their environments and societal conditions, with motivations and actions that were realistically complex and often not in line with the prevailing moral attitudes of the day. His works served as a model for later realistic writers and were highly influential in the development of realistic theater. In his commitment to realism, Ibsen strived to reveal the inner psychological motivations of his characters and to tackle social issues such as the role of women in society, syphilis, euthanasia, and war.
While other playwrights and authors of the time, including Anton Chekhov, George Bernard Shaw, and August Strindberg, also contributed significantly to the realism movement, each brought their unique vision to the table. Chekhov's works like Three Sisters and The Cherry Orchard often depicted psychological realities and characters entrapped in their societal roles, while Shaw's sharp wit led to societal examinations and critiques in plays like Mrs. Warren's Profession and Pygmalion. Strindberg's influence on O'Neill is noted in his phase of expressionism, but O'Neill is more renowned for bringing American drama to high regard with his ultimate return to realism.