Jason Alexander (Seinfeld) will play himself in the Dec. 18 episode of Spectrum Originals’ "Mad About You" revival.

Jean Smart (currently on Watchmen) will guest-star in the same installment as an eccentric lifestyle guru and podcaster who runs a weekend seminar that Paul and Jamie accidentally attend.

https://tvline.com/2019/12/04/council-of-dads-hilarie-burton-cast-season-1-nbc-drama/

That all sounds very interesting. I remember Jean Smart from the short-lived series called "Teachers Only". I thought she was pretty cool.

I know her from Frasier! I love her!