Jon-Erik Hexum (November 5, 1957 – October 18, 1984) was an American model and actor. He died as a result of an accidental self-inflicted blank cartridge gunshot round to the head on the set of the CBS television series Cover Up, in which he played the male lead.
Hexum was born in Englewood, New Jersey, to Gretha and Thorleif Hexum, who were of Norwegian descent. He and his elder brother, Gunnar, were raised in Tenafly, New Jersey, by their mother after their parents divorced when Hexum was four. After graduating from high school, Hexum went on to Case Western Reserve University in Cleveland to study biomedical engineering. He soon left that university, however, and transferred to Michigan State University in East Lansing, Michigan. During that time, he worked as a radio disc jockey, played football on the 1978 squad, and acted in minor stage roles.