In the late 1960s, she played a small recurring part in Star Trek as Angela Martine, in season 1 episodes "Balance of Terror" and "Shore Leave".

[1] Baldavin appeared in the series finale, "Turnabout Intruder", as Lt. Lisa, a communications officer and court reporter.

In a season 1 episode of Adam 12, Baldavin played Betty Wells, the wife of Officer Ed Wells (Gary Crosby); in a season 2 episode, she played Sally Fisher, a nurse and girlfriend of Pete Malloy (Martin Milner).

[2] Baldavin was married to Joseph D'Agosta, whom she met when she appeared on the original Star Trek series, where he was a casting director.

[2][3] Baldavin died of congestive heart failure at her home in Manhattan Beach, California, on March 31, 2024, at the age of 85.