Supergirl - Season 3, Episode 10 - Rotten Tomatoes

Legion of Superheroes



Critic Consensus: While the villainous Reign remains the focus of the season, "Legion of Superheroes" skillfully weaves in a satisfying new character.

Episode Info

Struggling to heal from her injuries inflicted by Reign, Supergirl remains in a dreamlike state, unable to be reached. Mon-El recruits one of the Legion members, Brainiac-5, to try to bring her back. Meanwhile, Reign continues her rampage on the city so the DEO teams up with the Legion of Superheroes to try to stop her.


Melissa Benoist
as Kara Danvers/Supergirl
Mehcad Brooks
as James Olsen
Chyler Leigh
as Alex Danvers
Jeremy Jordan
as Winslow "Winn" Schott
David Harewood
as Hank Henshaw/J'onn J'onzz
Chris Wood
as Mon-El
Floriana Lima
as Maggie Sawyer
Katie McGrath
as Lena Luthor
Jesse Rath
as Brainiac-5
View All

News & Interviews for Legion of Superheroes

Legion of Superheroes Videos

Legion of Superheroes Photos

Critic reviews for Legion of Superheroes

Monday's Supergirl introduced us to our second favorite blue-skinned television character named Brainy. (Sorry, but Smurfs always come first at TVLine.)

August 1, 2018 | Full Review…

We have a new character, and he's one who definitely needs to stick around for awhile. Move over Mon-El; Kara may have a new potential love interest.

July 31, 2018 | Rating: 3.7/5 | Full Review…

Like most Supergirl episodes these days, "Legion of Superheroes" is filled with both good and bad elements amid some interesting storytelling techniques.

July 30, 2018 | Rating: 3/5 | Full Review…

The majority of the episode, luckily, takes place outside of Kara's brain, where the DEO team have to figure out how to handle the Reign situation.

July 27, 2018 | Full Review…

One of the things that I love about the return of Mon-El, the arrival of Imra/Saturn Girl, and the introduction of Brainiac-5 is that having the Legion of Superheroes on the show reconnects Kara to the wider universe.

July 27, 2018 | Full Review…

The general Reign conflict continues to anchor the show. This week continued to build the rivalry between Reign and Supergirl while also making it clear there's plenty of room to grow in the latter half of Season 3.

July 26, 2018 | Rating: 8.1/10 | Full Review…

Discussion Forum

Discuss Supergirl on our TV talk forum!