Supergirl Facts, FAQ & Common Questions
2015 · CBS, The CW · Status: Ended · Rated: TV-14
Frequently Asked Questions About Supergirl
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Supergirl have?
Supergirl has 6 seasons and 126 total episodes, spanning from its premiere on October 26, 2015 to November 9, 2021.
Is Supergirl renewed, ended, or canceled?
Supergirl has concluded its run and is officially ended.
How long does it take to binge watch Supergirl?
It takes 74h 17m (4457 minutes) to watch the complete run of Supergirl. At a standard pace of 2 hours per day, you will finish the entire series in approximately 38 days. Not realistic for a 48-hour weekend. At 74.3 total hours, watching at a healthy 2 hours per day will take approximately 38 days.
What is the highest-rated episode of Supergirl?
The highest-rated episode is Season 1, Episode 13 ("For The Girl Who Has Everything"), which holds an outstanding rating of 7.3/10 based on 43 audience ratings.
Where can you stream or watch Supergirl?
Supergirl is available for streaming on Netflix, Netflix Standard with Ads. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Supergirl?
Supergirl has an official content rating of TV-14.
Who are the lead actors in Supergirl?
The primary ensemble cast includes Melissa Benoist as Kara Danvers / Supergirl / Kara Zor-El (age 37), Chyler Leigh as Alex Danvers / Sentinel (age 44), David Harewood as J'onn J'onzz / Martian Manhunter (age 60), Katie McGrath as Lena Luthor (age 43).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Melissa Benoist | Kara Danvers / Supergirl / Kara Zor-El | 37 |
| Chyler Leigh | Alex Danvers / Sentinel | 44 |
| David Harewood | J'onn J'onzz / Martian Manhunter | 60 |
| Katie McGrath | Lena Luthor | 43 |
| Mehcad Brooks | James 'Jimmy' Olsen / Guardian | 45 |
| Jeremy Jordan | Winn Schott | 41 |
| Jesse Rath | Querl 'Brainy' Dox / Brainiac-5 | 37 |
| Nicole Maines | Nia Nal / Dreamer | 28 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Supergirl are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on September 25, 2026.