Gloucester, like Lear, is a trusting old man who is blind to the truth of the nature of his children. He is passionate and impetuous, unquestioningly believing his illegitimate son Edmund when Edmund falsely accuses his brother Edgar of plotting to do his father wrong. Gloucester responds in haste, denouncing his legitimate son Edgar, who in actuality is the one who loves him. Gloucester pays for his imprudent judgement with the violent loss of his sight.
Gloucester's emotionalism is the overriding trait of his character; when he realizes what he has done to his undeserving Edgar, he responds with despair. In his old age he needs someone to depend on, but believes there will be no forgiveness for his sin, and wants to die. Gloucester is a tormented character even after he discovers that Edgar's love for him transcends his wrongs. Although he is joyful that his son still loves him, Gloucester will, until the moment of his death, grieve the injustice with which he treated his noble son.