Kara Danvers / Supergirl / Kara Zor-El
Melissa Benoist
Cat Grant
Calista Flockhart
Alex Danvers
Chyler Leigh
James 'Jimmy' Olsen / Guardian
Mehcad Brooks
J'onn J'onzz / Martian Manhunter
David Harewood
Alura Zor-El / Astra
Laura Benanti
Lena Luthor
Katherine Elizabeth McGrath
Winslow "Winn" Schott
Jeremy Jordan
Winn Schott / Toyman / Computer Lad
Jeremy Jordan
Colonel James Harper
Eddie McClintock
Barry Allen / The Flash
Grant Gustin
Senator Miranda Crane
Tawny Cypress
Lucy Lane
Jenna Dewan Tatum
Hayashi
Derek Mio
Querl 'Brainy' Dox / Brainiac-5
Jesse Rath
DEO Agent 2
Daniel Josev
Nia Nal / Dreamer
Nicole Maines
Paulina
Tristin Mays
Ben Krull / Reactron
Chris Browning
Agent Donovan
Luke Macfarlane
Non
Chris Vance
Tobey
Ben Begley
Adam Foster
Blake Jenner
Police Officer
Vincent Giovanni
Mon-El
Chris Wood
Red Tornado / T. O. Morrow
Iddo Goldberg
The Commander
Faran Tahir
Vartox
Owain Yeoman
Jemm
Charles Halford
Hellgrammite
Justice Leak
Police Officer
Frank Maharajh
Siobhan Smythe / Silver Banshee
Italia Ricci
Guard 1
Chris Jai Alex
Maxwell Lord
Peter Facinelli
Cat's Assistant
Maisie Klompus
Ethan Knox
Scott Michael Campbell
Indigo
Laura Vandervoort
Aisha Tyler
Aisha Tyler
Zor-El
Robert Gant
Commander Gor
Eric Steinberg
Field News Reporter
Angela Martinez
Leslie Willis/Livewire
Brit Morgan
Kelly Olsen / Guardian
Azie Tesfai
Agent Hartmann
Rich Ceraulo
Guard 2
David Salsa
Mom
Rebekah Salgado
Senior Tech
Ashton Bingham
Julie Chen
Julie Chen
Second Engineer
John Churchill
Another Staffer
Nick Jaine
Fire Chief
Preston James Hillier
KONC Newscaster
Jeannine Cota
Eve Tessmacher / Hope
Andrea Brooks
Rick Malverne
Zayne Emory
Agent Susan Vasquez
Briana Venskus
Dr. Jeremiah Danvers
Dean Cain
Winslow Schott / Toyman
Henry Czerny
Dad
Rudy Marquez
Agent Tsung
David Lim
Son
Juan Martinez
General Mathers
Patrick O'Connell
Newscaster
Kent Shocknek
Cat's Lawyer 1
Aaron Lustig
Tor
Christopher Showerman
Carl Draper / Master Jailer
Jeff Branson
Maggie Sawyer
Floriana Lima
Male Newscaster / News Anchor / News Anchor #1
Jay Jackson
Female Student 1
Mackenzie Brooke Smith
Katherine Grant
Joan Juliet Buck
Agent Reynolds
Ayo Sorrells
Guard 1
Justin Chu Cary
Sara Gilbert
Sara Gilbert
General Sam Lane
Glenn Morshower
An Engineer
Majeed Nami
Kal-El
Daniel DiMaggio
Guard 3
Isaac Keys
Cat's Lawyer 2
Rene Ashton
Security Guard
Bruno Amato
Andrea Rojas / Acrata
Julie Gonzalo
Dr. Eliza Danvers
Helen Slater
Fire Chief
Dan Warner
Professor Alphonse Luzano
Todd Sherry
Sheryl Underwood
Sheryl Underwood
Commander
Rey Hernandez
Guard 2
Frank Pacheco
Female Newscaster
Pilar Holland
Daughter
Jasmine Alveran
Young Kara Zor-El
Malina Weissman
Female Student 2
Jaidan Jiron
Girlfriend
Kelly Chavers
Fratty Dude
Michael Mealor
Woman
Stephanie Arcila
DEO Doctor
Sarah Robson
Alien Soldier
Ric Sarabia
Doctor
Kavita Patil
Store Owner
Zuhair Haddad
Pedestrian Woman
Dawn Greenidge
Doctor
Ron Bottitta
Pilot
Tom Waite
Gabriel Phillips
Blake Berris
Security Guard
Stephanie Czajkowski
Maxima
Eve Torres Gracie
Morning Talk Show Host
Nischelle Turner
Young Alex Danvers
Jordan Mazarati
William Dey
Staz Nair
Boyfriend
Ruben Vernier
Costumed Girl
Kitana Turnbull
Himself
Rick Garcia
Chester Dunholtz
Scott Alan Smith
Jim Warren
Ray Campbell
Reporter
Casey Strand
Board Member 1
Dar Dixon
Teacher
Renee Pezzotta
Little Boy
Cole Michaels
Scientist
Michael Albala
Waitress
Nerlyn Jean
Silo Guard 1
Sebastian Velmont
Mean Girl
KylieRae Condon
Young Alex
Jordan Mazarati
Herself
Leyna Nguyen
Cameron Chase
Emma Caulfield
Thug
Mike Owen
Samantha Arias / Reign
Odette Annable
Looter
Bryan Lugo
Jane Doe
Hope Lauren
Passenger
Joshua Triplett
Grandmother
Cheryl Turner
Lillian Luthor
Brenda Strong
Police Officer
Jennifer Sommerfeld
Girl
Avelena Wijesundera
Ben Lockwood / Agent Liberty
Samuel Witwer
Ricardo
Rey Valentin
Guy 2
Michael Hanson
Yale
Paul Stuart
Kelly
Carly Nykanen
Nyxlygsptlnz / 'Nyxly'
Peta Sergeant
Lex Luthor
Jon Cryer
Plane passenger
Sheila Collins
Pilot
Chris Anglin
M'gann M'orzz
Sharon Leal
Waitress
Kinna McInroe
Ruby Arias
Emma Tremblay
Myr'nn J'onzz
Carl Lumbly
Terrified Teen
Julien Yuen
Colonel Lauren Haley
April Parker-Jones
Fish Head
Robert Zen Humpage
Otis Graves
Robert Baker
Mitch
Matt Baram
Selena
Anjali Jay
Katie McGrath
Alura Zor-El / Noel Neill
Erica Durance
Newscaster / News Reporter / News Anchor
Arran Henn
Al / Al #2
Keith Dallas
MacKenzie
Jaymee Mak
Imra Ardeen
Amy Jackson
Gamemnae / Gemma Cooper
Cara Buono
Snapper Carr
Ian Gomez
Rhea
Teri Hatcher
Terrified Teen
Julian Yuen
Demos
Curtis Lum
Kal-El
Kevin Caliber
Margot / Leviathan Agent / Woman
Patti Allan
News Anchor / Newscaster / Reporter
Sonia Sunger
DEO Agent / Agent Reiff
Donna Benedicto
Thomas Coville
Chad Lowe
Esme
Mila Jones
George Lockwood
Graham Verchere
Malefic J'onzz
Phil LaMarr
Clark Kent / Superman
Tyler Hoechlin
Julia Freeman / Purity
Krys Marshall
Brian
Josh Hallem
Franklin
Sean Hewlett
Totem Oracle (voice)
Andrew Morgado
Lyra Strayd
Tamzin Merchant
Young Kara
Izabela Vidovic
Sarah Walker / Regina Williams
Françoise Robertson
Young Alex
Olivia Nikkanen
Raymond Jensen
Anthony Konechny
Lydia Lockwood
Sarah Smyth
Patricia Arias / Owl (voice)
Betty Buckley
Zor-El
Jason Behr
Vita
Rosemary Hochschild
Orlando Davis
Jhaleil Swaby