Kara, devastated by the loss of Krypton, struggles to adjust to her new life on Earth. Her cousin, Superman, mentors her and suggests she leave their space-time to attend the Legion Academy in the 31st century, where she makes new friends and a new enemy: Brainiac 5. Meanwhile, she must contend with a mysterious group called the Dark Circle as it searches for a powerful weapon held in the Academy’s vault.
Meg Donnelly
as Supergirl / Kara (voice)
Harry Shum Jr.
as Brainiac 5 (voice)
Jensen Ackles
as Batman (voice)
Gideon Adlon
as Phantom Girl (voice)
Matt Bomer
as The Flash (voice)
Darren Criss
as Superman (voice)
Robbie Daymond
as TimberWolf / Brainiac 4 (voice)
Darin De Paul
as Brainiac / Solomon Grundy (voice)
Ben Diskin
as Arms Fall Off Boy / Brainiac 2 (voice)
Victoria Grace
as Shadow Lass (voice)
Jennifer Hale
as Alura (voice)
Cynthia Hamidi
as Dawnstar (voice)
