The Secrets of Isis

The Secrets of Isis (aka Isis) is a live-action YA TV series first aired in the 1970s, in conjunction with "Shazam!". It featured science teacher Andrea Thomas (played by JoAnna Cameron) as a superhero.

Isis aired on CBS from September 6, 1975 to September 3, 1977 (15 episodes) as part of the Shazam!/Isis Hour. The success of the show led to a separate series, The Secrets of Isis, which was produced for only seven episodes. Andrea Thomas (played by JoAnna Cameron) also appeared in three episodes of Shazam!. Andrea Thomas later appeared in the animated "Tarzan and the Super 7" show (1980) in "The Freedom Force" segment, and in the cartoon "Hero High".

The Filmation-produced character was also the basis of a DC comic series.