Mr. Otis: The father of the Otis family. He is a middle-aged American minister; he is determinated, inflexible, rational, practical and pragmatic, in conclusion a true American. In fact at the beginning he believes that the ghost doesn’t exist, then, when he personally meets him, he is indifferent: he has more important things to do, making money, for example.
Washington: the Otises' oldest son; “he is a fire-haired rather good-looking young man; gardenias and peerage are his only weaknesses.”
Mrs Otis: The mother isn't scared of the ghost and even asks him if he wants a remedy for his stomach. “She is a very handsome middle-aged woman with fine eyes and a superb profile. She has a magnificent constitution and a wonderful amount of animal spirits.”
Duke of Chesire: “He is a handsome young scapegrace” desperately in love with the fifteen-year old Virginia Otis. However, his guardians pack him off to Eton, and he must wait to marry. When Virginia vanishes, he insists on being part of the search party. His devotion is rewarded, and Virginia consents to become the Duchess of Cheshire.
Lord Canterville: A respectable descendent of the Canterville family, that was the owner of the Canterville Chase. “He is an English men of the most punctilious honour.”