It Was a Short Summer, Charlie Brown is the sixth prime-time animated TV specials based upon the popular comic strip Peanuts, created by Charles M. Schulz. It was directed by Bill Meléndez and originally aired on CBS on 27 September 1969. This was also the first Peanuts special not to feature the majority of the original voice cast from the inaugural A Charlie Brown Christmas, except for Ann Altieri, Bill Melendez, Peter Robbins, and Sally Dryer. Among the notable additions to the cast for this special was Pamelyn Ferdin, Robbins's co-star on Blondie.
|Peter Robbins||Charlie Brown|
|Pamelyn Ferdin||Lucy van Pelt|
|Glenn Gilger||Linus van Pelt / Sally Brown|
|Christopher DeFaria||Peppermint Patty|
|Sally Dryer||Shirley / Clara / Sophie|
|Matthew Liftin||Roy / Kid|
|Hilary Momberger-Powers||Sally Brown (voice) (as Hilary Momberger)|