0 FacebookTwitterPinterestWhatsapp Celebrity Kevin James’s Sister Leslie Knipfing: Age, Biography, Networth and More by Admin March 14, 2024 by Admin March 14, 2024 0 comment Leslie Knipfing, an American citizen, is the sister of Kevin James and Gary Valentine, who are well-recognized actors and comedians known for their performances in The King of Queens. Aside … Read more