Caesar, Sid: Biography and a list of film, television and theatre credits.
Canoe - Hale Caesar: The comedian discusses his views on Jewish humor, and the perils of live television. By Jim Slotek.
IMDb - Sid Caesar: Biographical information, photographs and filmography.
Time.com - That Old Feeling: Hail, Caesar!: Analysis of the comic's appeal and that of his co-stars, with a list of ten notable sketches. By Richard Corliss.