Also Read: 12 Highest-Rated Broadcast TV Shows of Summer 2020 (Photos)Along with Benoist, Season 5 of “Supergirl” starred Chyler Leigh, Katie McGrath, Jesse Rath, Nicole Maines, Azie Tesfai, Andrea Brooks, Julie Gonzalo, Staz Nair and David Harewood, with guest star Jon Cryer.Here’s the description for that batch of episodes, which ended in May:“In season five, Supergirl faces threats, both new and ancient.