Buchwald passed away peacefully surrounded by his family, the company said in a statement Tuesday.
He got the nickname Superagent from Stern and is mentioned often but rarely heard onSiriusXMsThe Howard Stern Show.
Im not a particularly boastful person, he toldThe New York Timesin a 2018interview.

Don Buchwald in 2008Getty Images
He left school to join the Army in 1954 and was stationed in Korea after the armistice was signed.
Buchwald later returned to Brooklyn College and earned a degree in 1959.
The schools George Gershwin Theater later was renamed Don Buchwald Theater.

Don BuchwaldBuchwald
I was taken aback to replace the George Gershwin with the Don Buchwald.
Gershwin will never be forgotten.
Ill go the way of a mere mortal.
He soon began working as a agent for talent he met.
I took a business management course and began managing the activities of summer stock playhouses and more.
In the meantime, the competing satcasters had merged, forming SiriusXM in 2008.
Still, Stern boasted more than a million faithful listeners.
I, along with my devoted teammates, intend to keep this promise and make Don proud.