[citation needed] At age 16, she accompanied her father on a business trip to New York City, where she waited at the stage door of Dark Shadows.
Following graduation in 1969, Spang returned to Michigan where she attended Adrian College, living dorm life on a small campus, but not far from her family in Ann Arbor.
She dropped out of Adrian before completing her first year after her poor grades led her father to stop providing money.
[citation needed] Towards the end of her contract with Universal (by which time, according to People Weekly Magazine, October 2, 1978, [4] her money was almost exhausted and she had been evicted from an apartment she had been renting), Spang was cast as Cassiopeia in the Battlestar Galactica pilot movie, "Saga of a Star World".
(The censors would no longer allow her to be a socialator, so Glen Larson and Donald P. Bellisario had her character become a medtech in the series, beginning with "Lost Planet of the Gods, Parts 1 & 2").
She took a de facto retirement from acting in 1984, though she made a brief appearance in the 2007 horror film Plot 7, which also featured her by-then husband John McCook.