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 and Lisa. He is the ex-paternal grandfather-in-law of Zack Johnson and the current paternal grandfather-in-law of Leonard Hofstadter and Lisa's Husband. He is a great-grandfather to Penny's nephew. Penny, Lisa And Randall's Cousin may be his possible grandson.