The BTS stories that have come out about The Big Bang Theory over the years include character changes, alternate actors and much more. One of the most interesting details involves the character of Howard Wolowitz. Before Kevin Sussman landed the role of Stuart Bloom and got his own show on the 2026 TV schedule, he nearly played Howard. Eventual Wolowitz actor Simon Helberg shared his side of the story on that casting and, now, Sussman is sharing his take.