| "Nightmare in National City" | |
|---|---|
| Series Supergirl Season 6, Episode 16 | |
| File:Supergirl 6x16 001.jpg | |
| Air date | October 19th, 2021 |
| Writers | Dana Horgan; Eric Carrasco |
| Director | Carl Seaton |
| Producers | Greg Berlanti; Saray D. Guidetti; Dana Horgan; Jennifer Lence; Gabriel Llanas; Carl Ogawa; Chris Pavoni; Jessica Queller; Robert L. Rovner; Sarah Schechter; Derek Simon; Jesse Warn; Joanie L. Woehler; Rob Wright |
| Starring | Melissa Benoist; Mehcad Brooks; Chyler Leigh; Katie McGrath; Jesse Rath; Sam Witwer; Nicole Maines; April Parker Jones; David Harewood |
| Episode guide | |
| Previous "Hope for Tomorrow" |
Next "I Believe in a Thing Called Love" |
"Nightmare in National City" is the sixteenth episode of season six of the superhero fantasy series Supergirl and the eighty-first episode of the series overall. It was directed by Carl Seaton with a screenplay written by Dana Horgan and Eric Carrasco. It first aired on the CW Network on Sunday, October 19th, 2021 at 8:00 pm.