Supergirl (TV Series) Episode: O Brother, Where Art Thou?

"O Brother, Where Art Thou?"

Previous Episode	Next Episode
"Stand and Deliver" (March 10, 2019)	"The House of L" (March 24, 2019)

James is gonna live, and you're gonna rot. 'Cause I will never, never give you the cure.

—Lena Luthor

O Brother, Where Art Thou? is an episode of season 4 of Supergirl. It premiered on March 17, 2019.

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Featured Characters:

Supporting Characters:

Antagonists:

Lex Luthor (First full appearance) (Flashback and main story)
- Eve Tessmacher
- Otis Graves (Revealed to be alive)
Manchester Black (Apparent death)

Other Characters:

Federal Bureau of Investigation
Dr. Kaplan (Single appearance)
Metropolis Police Department (Cameo)
Green Martians
- M'yri'ah J'onzz (In a vision)
- M'yrnn J'onzz (In a vision)
- K'hym J'onzz (In a vision)
- T'ania J'onzz (In a vision)
Lillian Luthor (In picture only) (Cameo)
Coluans (Mentioned only)
- "Evil One" (Legion's Future) (Mentioned only)
H'ronmeer (Mentioned only)
Ignatius (Deceased) (Mentioned only)
Lena Luthor's mother (Mentioned only)
Mon-El (Mentioned only)
Superman (Mentioned only)
Keanu Reeves (Mentioned only)

Locations:

Items:

Vehicles:

In this episode, there are many references to events from various adaptations:
- Lex Luthor turning the sun red in order to remove Superman's powers is a reference to the sun also becoming red to stop the Kryptonians in Superman: War of the Supermen;
- The big earthquake in Metropolis is a nod to Donnerverse Lex's plan from the movie Superman;
- Lex Luthor being affected by cancer after injecting himself with Kryptonite is a reference to the comics where Lex Luthor discovered that his Kryptonite Ring caused him cancer.

Footnotes