The landlord and distant relative of Martin Kelly. His engagement to Fanny Wyndham was broken off by her guardian because of his horse-racing affiliations and his poverty. After Fanny refused to marry her guardian's son, her engagement to Frank was renewed.

One of the two heroes in The Kellys and the O'Kellys.

"Frank was a very handsome fellow, full six feet high, with black hair, and jet-black silky whiskers, meeting under his chin.... He had an eye like a hawk, round, bright and hold; a mouth and chin almost too well-formed for a man; and that kind of broad forehead which conveys rather the idea of a generous, kind, open-hearted disposition, than of a deep mind or a commanding intelligence." -  The Kellys and the O'Kellys.