That is Serinda Swan.

She played Medusa in the short lived series The Inhumans.

I waited decades for a show on the Inhumans to come out. With the success of TANGLED with the animated hair, I thought this would be a masterpiece for hair eroticism.

Alas, with production costs so high the decide she gets her head shaved in the first episode by her brother-in-law, thus avoiding all the animation of bringing that magnificent hair to life.

There is always a chance another version may materialize, as The Fantastic Four has tried 5 times.

The Inhumans were a part of The Fantastic Four comics, so I always am hopeful