Yep, It was said a lot, I see. Don Adams died, Barbara Feldon is still alive at 91. Of Edward Platt as chief was older, so I know he can't still be alive.
Agent 99 was smarter and more capable than agent 86, that's for sure. She was a capable agent, which made her a good role model for women, and showing her as capable was ahead of its time. On Wikipedia, it says that Don Adams won three emmy awards for Maxwell Smart. The show is described as a combination of James Bond films, and Inspector Clouseau films (Pink Panther). Mel Brooks had a co-creator named Buck Henry. Mel Brooks said "No one had ever done a show about an idiot before. I decided to be the first."
His next important project was "The Producers" which featured a musical as part of it that included the song "Springtime for Hitler". The core idea for the film was that he wanted to have some sort of satire about Hitler with a song "Springtime for Hitler". I loved that movie. In it Brooks featured Gene Wilder for the first time, who went on to star in other Mel Brooks movies, like "Blazing Saddles" and "Young Frankenstein". I loved Gene Wilder.