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Holy Mitzi Gaynor!
A promotional short introducing Yvonne Craig as Batgirl was produced, and was convincing enough for ABC executives to pick up Batman for another season.
batgirl-yvonnecraig by greatspacecoaster15, via Flickr
Yvonne Craig. Batgirl by night.
Yvonne Craig as Batgirl
Yvonne Craig in Star Trek
Yvonne Craig aka Batgirl