Supergirl 4x15 Sneak Peek “O Brother, Where Art Thou?“ (HD) Jon Cryer as Lex Luthor

Supergirl 4x15 “O Brother, Where Art Thou?“ Season 4 Episode 15 Sneak Peek - JON CRYER GUEST STARS AS ICONIC DC COMICS’ VILLAIN LEX LUTHOR — Secretly furloughed from prison due to failing health, Lex Luthor (guest star Jon Cryer) visits his sister, Lena (Katie McGrath), 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 truly feels about her brother. Meanwhile, Supergirl (Melissa Benoist) and J’onn