Seckel was born September 3, 1958 in New York City, New York to Paul Bernard Seckel, a German-born painter and graphic artist, and Ruth Schonthal, a German-born pianist and classical composer. His mother was a refugee from the Nazis. Seckel was raised in a Jewish household. He grew up in New Rochelle, NY with his two brothers. Seckel graduated from New Rochelle High School in 1976. He attended Cornell University from 1976 to 1978 but left without receiving a degree.
