Supergirl (2015– )
7 user 9 critic


Red Kryptonite makes Kara malicious and dangerous while Cat appears on The Talk (2010) to discuss Supergirl.


Larry Teng


Jerry Siegel (based on characters created by), Joe Shuster (based on characters created by) | 6 more credits »





Episode cast overview, first billed only:
Melissa Benoist ... Kara Danvers / Supergirl
Mehcad Brooks ... James Olsen
Chyler Leigh ... Alex Danvers
Jeremy Jordan ... Winn Schott
David Harewood ... Hank Henshaw / J'onn J'onzz
Calista Flockhart ... Cat Grant
Peter Facinelli ... Maxwell Lord
Italia Ricci ... Siobhan Smythe
Tawny Cypress ... Senator Miranda Crane
Julie Chen Moonves ... Julie Chen (as Julie Chen)
Sara Gilbert ... Sara Gilbert
Sharon Osbourne ... Sharon Osbourne
Aisha Tyler ... Aisha Tyler
Sheryl Underwood ... Sheryl Underwood
Briana Venskus ... Agent Vasquez


Red Kryptonite makes Kara malicious and dangerous while Cat appears on The Talk (2010) to discuss Supergirl.

Plot Summary | Add Synopsis


TV-14 | See all certifications »






Release Date:

14 March 2016 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


The K'Hund in this episode is possibly of the same race as the Khunds from the comic book version of the Legion of Super-heroes. See more »


James and Winn go to the DEO headquarters and announce in front if everyone that Kara is having problems, thus outing Supergirl's secret identity to every one in the room at the time. See more »


Mean Girl: [to loner girl dressed up as heroine] So, you think you're Supergirl? If I shoved you, could you fly?
[her two friends chuckle]
Mean Girl: You look so stupid.
Costumed Girl: No, I don't.
Mean Girl: Everybody thinks so, that's why you don't have any friends.
Supergirl: [landing] I wouldn't say that.
[to Laura:]
Supergirl: I actually think you look pretty awesome.
Costumed Girl: Thanks.
Mean Girl: Laura, do you know Supergirl?
See more »


References Superman III (1983) See more »


Performed by Demi Lovato
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User Reviews

Not the best episode.
20 March 2016 | by nbastreetmasterSee all my reviews

Felt like this episode is the weakest one so far with red kryptonite turning Kara into a cat clone. But like in most shows they have some episodes that aren't as good as the other ones. And this show's no exception. That being said it's not the worse episode still good enough. But could of been way better with a different episode idea. Still Supergirl is still a good show and the future episodes can just get better from here on. Season one has been great so far in my opinion even this one though not the best is still a 6/10 in my opinion and I'm sure the next episode will be great. In all i find this show a good alternative from the superman and Smallville shows that we're on before this one. As you get the story from Superman's cousins side.

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