Supergirl - Season 3 - Eps 14: Schott Through the Heart
When Winn’s father dies, his estranged mother, Mary, reappears trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of Myr'nn’s recent behavior.
About Supergirl

Title: Supergirl
First Air Date: 2015-10-26
Last Air Date: 2021-11-09
Status: Ended
Rating: 7.306/10 (from 4223 votes)
Language: EN
Seasons: 6
Total Episodes: 126
Network: CBS The CW
Genres: Drama, Sci-Fi & Fantasy, Action & Adventure
Production Companies: DC Entertainment, Berlanti Productions, Warner Bros. Television
Synopsis
Twenty-four-year-old Kara Zor-El, who was taken in by the Danvers family when she was 13 after being sent away from Krypton, must learn to embrace her powers after previously hiding them. The Danvers teach her to be careful with her powers, until she has to reveal them during an unexpected disaster, setting her on her journey of heroism.
Cast

Melissa Benoist
Kara Danvers / Supergirl / Kara Zor-El

Chyler Leigh
Alex Danvers / Sentinel

David Harewood
J'onn J'onzz / Martian Manhunter

Katie McGrath
Lena Luthor

Jesse Rath
Querl 'Brainy' Dox / Brainiac-5

Nicole Maines
Nia Nal / Dreamer

Azie Tesfai
Kelly Olsen / Guardian

Julie Gonzalo
Andrea Rojas / Acrata

Staz Nair
William Dey

Peta Sergeant
Nyxlygsptlnz / 'Nyxly'