Sid Caesar is one of the comic giants of 1950s TV, but he was also plagued by anxiety, depression, guilt and an explosive temper. In the early 1980s he came to my hometown of Louisville to perform at a dinner theatre, and I reviewed the show. I didn't know it then, but he was in the midst of a battle to escape his addiction to booze and pills and conquer his deep-seated demons.
Sources:
Where Have I Been? An Autobiography, by Sid Caesar with Bill Davidson
"Sid Caesar's Finest Sketch," David Margolick, The New Yorker, February 14, 2014