 O'Neil appeared in the 6-hour television miniseries "Jacqueline Susann's Valley of the Dolls" (1981), and appeared in two episodes of "The A-Team", playing Dr. Maggie "Mo" Sullivan in the season one episode "Black Day at Bad Rock" and the season two episode "Deadly Maneuvers".O'Neil made a number of appearances in popular science fiction television series during the 1980s and 90s.She portrayed Captain Rachel Garrett of the U.S.S.