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Trivia / Supergirl (2015) S4E15 "O Brother, Where Art Thou?"

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  • Actor-Shared Background: Lena's birth mother is revealed to have been of Irish descent. The actress playing Lena, Katie McGrath, is Irish.
  • Dawson Casting: Jon Cryer is only a few years younger than the actress who plays his mother.
    • With Lex dying from cancer, his appearance as older than his actual age fits.
  • Mythology Gag: The music that plays during Lex's escape is Mozart's "Eine Kleine Nachtmusick", which is also whistled by Lex in Superman IV: The Quest for Peace, right before his escape from the prison quarry.

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