Lynda Carter has arrived in National City.
The actress best known as playingWonder Womanwill make her debut onSupergirlin episode 3 of The CW series.
Supergirl (Melissa Benoist) and the DEO are assigned to protect Marsdin and bring in the responsible party.

Credit: Diyah Pera/The CW
See more images of Carter below.Supergirlseason 2 premieres Monday at 8 p.m. ET/7 p.m. CT on The CW.

Diyah Pera/The CW

Diyah Pera/The CW

Diyah Pera/The CW