After a
Universal Studios talent agent spotted her in 1972, Spang signed a 7-year contract with the studio. She then had a succession of guest-starring roles in television series including
Emergency!,
Adam-12,
The Streets of San Francisco,
The Six Million Dollar Man,
Happy Days,
Chase,
The Secrets of Isis, ''
Charlie's Angels and Lou Grant. Spang also appeared in the television movies Short Walk to Daylight
, Runaway! and Sarah T. - Portrait of a Teenage Alcoholic. She co-starred in a production of Winesburg, Ohio'' on KCET's Hollywood Television Theatre. Towards the end of her contract with Universal (by which time, according to
People Weekly Magazine, October 2, 1978, 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". An initial draft of the script had her killed off in the pilot film, in which the insectoid Ovions consumed her, almost cannibal-style. However, the character survived and the network kept her on in a regular role in the subsequent weekly series, but "Standards and Practices" (network censors) forced a change of profession upon her. (The censors would no longer allow her to be a so-called "
socialator" (similar to a
geisha), so
Glen Larson and
Donald P. Bellisario had her character become a
medtech (a
nurse) in the series, beginning with "Lost Planet of the Gods, Parts 1 & 2"). Spang's later acting performances were in
The Love Boat,
Fantasy Island,
The Dukes of Hazzard,
BJ and the Bear,
Magnum, P.I., ''
Three's Company, Man from Atlantis, The Gemini Man and more. 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 husband John McCook. Spang appeared in the Battlestar Galactica
episode of Sciography documentary series on the Sci-Fi Channel in 2002. In 2003, she appeared in another Battlestar Galactica'' documentary included as an extra feature in the DVD box set of the series released for the series' 25th anniversary. ==Personal life==