Frank Davis

Frank was a 23rd century human male. He was the brother of Winona Kirk. In the alternate reality created by Nero's incursion to 2233, Frank took in her sister and nephews ( and ) after the boys' father sacrificed himself to save his son's lives. 

George (according to James) could not stand living with Frank and left to live with their grandfather. Frank became James's legal guardian and the registered owner of George, Sr.'s car. He grounded James after the younger child destroyed the car. Per Winona, Frank was prone to yelling.