This man is the husband of Wyatt's Mother. He is the father of Wyatt and father-in-law of Susan. He is the paternal grandfather of Penny, Randall, as well as Penny And Randall's Sister. He is the ex-paternal grandfather-in-law of Zack Johnson and the current paternal grandfather-in-law of Leonard Hofstadter and Penny And Randall's Brother-in-law (Sister's Husband). He is a great-grandfather to Penny's nephew. Penny And Randall's Cousin may be his possible grandson.