Remember his wife Imogene Coca, right?
They'd appear together sometimes too, if I remember correctly.
Imogene Coca and Sid Caesar performed together for a number of years, but were never married to each other. Interestingly, the second of Coca's two husbands was actor King Donovan, who had a major supporting role in the original 1956 version of
Invasion of the Body Snatchers.
One of my favorite films is
My Favorite Year, with Peter O'Toole and Mark Linn-Baker. In it, Joseph Bologna plays "King Kaiser", a parody of Sid Caesar. Definitely a film worth seeing.
Signor V.