O Brother, Where Art Thou?

8.1/10 · 1,579 votesMar 17, 201942 min

Ranked #3 of 22 in Season 4•+0.7 vs season avg

Secretly furloughed from prison due to failing health, Lex Luthor visits his sister, Lena, to seek her help finding a cure. Savvy as ever, Lena is suspicious of Lex's motives but when she's faced with a life and death situation, she must decide how she

Cast8

Melissa Benoist

Kara Danvers / Supergirl / Kara Zor-El

Chyler Leigh

Alex Danvers / Sentinel

David Harewood

J'onn J'onzz / Martian Manhunter

Katie McGrath

Lena Luthor

Jesse Rath

Querl 'Brainy' Dox / Brainiac-5

Nicole Maines

Nia Nal / Dreamer

Sam Witwer

Ben Lockwood / Agent Liberty

Mehcad Brooks

Jimmy Olsen / Guardian

Crew5

Derek Simon

Writer

Tawnia McKiernan

Director

Nicki Holcomb

Writer

Matt Villeneuve

Assistant Location Manager

Thomas Ma

Assistant Director

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Episode Summary

"O Brother, Where Art Thou?" is episode 15 of Supergirl season 4. It scored 8.1/10 from 1,579 votes, ranking #3 of 22 episodes this season (season average 7.4). Directed by Tawnia McKiernan and written by Derek Simon, Nicki Holcomb, it aired on March 17, 2019.

O Brother, Where Art Thou?

Seasons6

Season 4 Episodes22

Cast8

Crew5

Discussion

Episode Summary