Elliot is the possible uncle by marriage of Howard Wolowitz and a brother-in-law of Debbie Melvina Wolowitz. He and his wife Betty (likely Debbie's sister) are coming from Palm Springs, California for dinner at the Wolowitz House to supposedly meet Howard's "girlfriend", Dr. Stephanie Barnett though Stephanie is not interested in Howard. By Howard's marriage, he has become an uncle-in-law to Bernadette Rostenkowski-Wolowitz. The result of such union has led to him becoming a great-uncle to their daughter Halley Wolowitz.
Elliot's nephew.