Supergirl S4, E20

The adventures of Superman's cousin and her own superhero career.

Cast:Melissa Benoist , Chyler Leigh , David Harewood , Katie McGrath , Mehcad Brooks , Jeremy Jordan , Jesse Rath , Nicole Maines , Chris Wood , Azie Tesfai , Andrea Brooks , Julie Gonzalo , Staz Nair , Calista Flockhart , Floriana Lima , Odette Annable , Brenda Strong , Sam Witwer