Supergirl I Believe in a Thing Called Love (Season 6, Episode 17)
TV-PG
TV Episode | 42 min | Action, Adventure, Drama

Primary photo for I Believe in a Thing Called Love

Supergirl

I Believe in a Thing Called Love (Season 6, Episode 17)

TV-PG

TV Episode | 42 min | Action, Adventure, Drama

When Lex Luthor appears by Nyxly's side, Supergirl and team must deal with the emotional fallout of facing their two biggest foes at the same time. Alex makes plans for the perfect proposal to Kelly, but work keeps getting in the way.

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Cast	+ Add Cast
15 cast members

Name	Known for
Melissa Benoist Kara Danvers / Supergirl Kara Danvers / Supergirl See fewer	Supergirl (2015)
Chyler Leigh Alex Danvers / Sentinel Alex Danvers / Sentinel See fewer	Not Another Teen Movie (2001)
Katie McGrath Lena Luthor Lena Luthor See fewer	Jurassic World (2015)
Jesse Rath Brainiac-5 / Querl Dox Brainiac-5 / Querl Dox See fewer	Supergirl (2015)
Nicole Maines Nia Nal / Dreamer Nia Nal / Dreamer See fewer	Bit (2019)
Azie Tesfai Kelly Olsen / Guardian Kelly Olsen / Guardian See fewer	Jane the Virgin (2014)
Julie Gonzalo Andrea Rojas Andrea Rojas See fewer	A Cinderella Story (2004)
Staz Nair William Dey William Dey See fewer	Rebel Moon - Part One: A Child of Fire (2023)
Peta Sergeant Nxylgsptinz Nxylgsptinz See fewer	Snowfall (2017)
David Harewood J'onn J'onnz / Martian Manhunter J'onn J'onnz / Martian Manhunter See fewer	Blood Diamond (2006)
Jon Cryer Lex Luthor Lex Luthor See fewer	Two and a Half Men (2003)
Robert Baker Otis Graves Otis Graves See fewer	Indiana Jones and the Kingdom of the Crystal Skull (2008)
Matt Baram Mitch Mitch See fewer	Supergirl (2015)
Mila Jones Esme Esme See fewer	Supergirl (2015)
Keith Dallas Al Al See fewer	Snakes on a Plane (2006)