In her first season of That '70s Show (1998) she had her hair done for every episode. After extensive hair damage, she asked producers to let her wear a wig instead. She wore wigs for the rest of the series.
She appeared in the late 1970s on The $10,000 Pyramid (1973) as a
contestant. She lost to her opponent who was paired with celebrity
actor Tony Randall.
Attended Masconomet Regional High School in Topsfield, Massachusetts. Graduated from the University of Rochester, New York in 1974.
A daughter of Margaret A. Williams Rupp (1928-2002) and John E. Rupp Jr. (1924-1990) and sister of Robin Lee Rupp and Rebecca Louise Rupp, Debra Jo Rupp has a niece and a nephew but has never married or had children.