Melissa Benoist
Kara Danvers / Supergirl / Kara Zor-El (19 eps)
Chyler Leigh
Alex Danvers / Sentinel (19 eps)
David Harewood
J'onn J'onzz / Martian Manhunter (19 eps)
Katie McGrath
Lena Luthor (19 eps)
Jesse Rath
Querl 'Brainy' Dox / Brainiac-5 (19 eps)
Nicole Maines
Nia Nal / Dreamer (19 eps)
Azie Tesfai
Kelly Olsen / Guardian (19 eps)
Julie Gonzalo
Andrea Rojas / Acrata (19 eps)
Staz Nair
William Dey (19 eps)
Andrea Brooks
Eve Tessmacher / Hope (19 eps)
Jon Cryer
Lex Luthor (9 eps)
Cara Buono
Gamemnae / Gemma Cooper (8 eps)
Patti Allan
Leviathan Agent (7 eps)
Phil LaMarr
Malefic J'onzz (6 eps)
Mitch Pileggi
Rama Khan (4 eps)
Brenda Strong
Lillian Luthor (4 eps)
Sharon Leal
M'gann M'orzz (3 eps)
Sean Hewlett
Franklin (3 eps)
Arran Henn
News Anchor #2 (3 eps)
Donna Benedicto
Agent Reiff (3 eps)
Ellexis Wejr
Mallory (2 eps)
Kari Wahlgren
Hope (voice) (2 eps)
Nick Sagar
Russell Rogers / Rip Roar (2 eps)
Tom Cavanagh
Harrison 'Nash' Wells / Pariah (2 eps)
Sean Astin
Pete Andrews (2 eps)
Willie Garson
Steve Lomeli (2 eps)
Meaghan Rath
Querl Dox / Brainiac-5 (2 eps)
Carl Lumbly
Myr'nn J'onzz (2 eps)
Brandon Routh
Ray Palmer / The Atom / Clark Kent / Superman (2 eps)
Tyler Hoechlin
Clark Kent / Superman (2 eps)
Luisa d'Oliveira
Elena Torres / Breathtaker (2 eps)
Larry MacDonald
Strange Man (2 eps)
Jesse Moss
Richard Bates (2 eps)
Malcolm Masters
Dr. Niles Jarrod (2 eps)
Anne Hollister
Tilly / Bonnie (2 eps)
John Murphy
Derek (2 eps)
Jeremy Jordan
Winn Schott / Toyman (2 eps)
Keith Dallas
Al (2 eps)
Thomas Lennon
Mxyzptlk (2 eps)
Rosemary Hochschild
Vita (2 eps)
Jennifer Cheon
Midnight (1 eps)
Kate Micucci
Tour Guide (1 eps)
Adam Gouti
Child (1 eps)
Nitin Prasad
Attendant (1 eps)
Anthony Bolognese
Kid #1 (1 eps)
Keira Harron
Kid #2 (1 eps)
Montserrat Powell
Obsidian Engineer (1 eps)
Brea St. James
Caroline O'Conner (1 eps)
Jalen Thomas Brooks
Simon Kirby (1 eps)
Patricia Isaac
Agent Igle (1 eps)
Paul Jarrett
Nelson Stewart (1 eps)
Rahul Kohli
Jack Spheer (1 eps)
Lucy Loken
Young Lena Luthor (1 eps)
Steven Bauer
Bernardo Rojas (1 eps)
Alexa Najera
Young Andrea Rojas (1 eps)
Duncan Fraser
Leviathan Messenger (1 eps)
Grant Gustin
Barry Allen / The Flash (1 eps)
Stephen Amell
Oliver Queen / Green Arrow (1 eps)
Caity Lotz
Sara Lance / White Canary (1 eps)
Ruby Rose
Kate Kane / Batwoman (1 eps)
Audrey Marie Anderson
Lyla Michaels / Harbinger (1 eps)
Erica Durance
Alura Zor-El (1 eps)
Elizabeth Tulloch
Lois Lane (1 eps)
Katherine McNamara
Mia Smoak / Blackstar (1 eps)
Robert Wuhl
Alexander Knox (1 eps)
Burt Ward
Dick Grayson (1 eps)
Wil Wheaton
Doomsday Protestor (1 eps)
Griffin Newman
Trivia Night Host (1 eps)
Nickolas Baric
Rabbit #1 (1 eps)
Alan Ritchson
Hank Hall / Hawk (uncredited) (1 eps)
Russell Tovey
Ray Terrill / The Ray (uncredited) (1 eps)
Curran Walters
Jason Todd / Robin (uncredited) (1 eps)
Sarwan Badesha
Onlooker (1 eps)
Brian Dudley
Chester Dunholtz (1 eps)
Kelten Jensen
Guard One (1 eps)
Henry Czerny
Winslow Schott / Toyman (1 eps)
Corbin Bleu
Trevor Crane (1 eps)
Jason Mewes
Mississippi Farmer (uncredited) (1 eps)
Michael Jonsson
Klaus (1 eps)
Michelle Christa Smith
Sela (1 eps)
Anjali Jay
Selena (1 eps)
Winsome Brown
Dark Kryptonian (1 eps)
Lynda Boyd
Eve Tessmacher's Mother (1 eps)
Olivia Nikkanen
Young Alex (1 eps)
Julia Harnett
Saleswoman (1 eps)
Marcus Aurelio Jr.
Martian Boy #3 (1 eps)
Cassandra Cavalli
Counter Lady (1 eps)
Hunter Dong
Coffe Cart Barista (1 eps)
Ava Frica
Martian Child #4 (1 eps)
Marcello Guedes
Young Malefic (1 eps)
Eric Gustafsson
Receptionist (1 eps)
Babak Haleky
Janitor (1 eps)
Balinder Johal
Old Lady (1 eps)
Marc-Anthony Massiah
Dr. Andrew Stern (1 eps)
Ethan Matute
Martian Child #2 (1 eps)
Antonio Ndala
Young J'onn (1 eps)
Dominique Robinson
Young Adult Malefic (1 eps)
Sasha Rojen
Martian Child #1 (1 eps)
Jerry Bannister
Construction Worker (1 eps)
Ryan Hesp
Agent Sloan (1 eps)
Lorenzo de La Rosa
Male Jogger (1 eps)
Kristi McMullan
Female Jogger (1 eps)
Chris Nowland
Grocer (1 eps)
Camille Posadas
Obsidian Woman (1 eps)
Michel Issa Rubio
Doorman (1 eps)
Paralee Cook
Waterfront Citizen #1 (1 eps)
Matthew Ip Shaw
Waterfront Citizen #2 (1 eps)
Shawn Ahmed
Aide (1 eps)
Jan Bos
Governor Tom Harper (1 eps)
Miguel Castillo
Guide (1 eps)
Lynn Colliar
Newscaster (1 eps)
Amanda Gray
DEO Agent #2 (1 eps)
Samantha Davis
4 Year Old Lena (1 eps)
Kelvin Lum
DEO Agent #1 (1 eps)
Ryan Mah
Officer (1 eps)
Sonia Sunger
News Anchor (1 eps)
Jay Clift
Lead FBI Agent (1 eps)
Lia Lam
DEO Agent (1 eps)
Chad Lowe
Thomas Coville (1 eps)
Betty Buckley
Patricia Arias (1 eps)
Jeffrey Chivers
Reporter (1 eps)
Toni Nielsen
News Anchor #2 (1 eps)
Andre Paul
Security Guard (1 eps)
Andy Rukes
Lillian's Attorney (1 eps)
Tawny West
News Anchor (1 eps)
Camille Sullivan
Amy (1 eps)
Leslee Achorn
Older Woman (1 eps)
Jason Beaudoin
Dmitri (1 eps)
Scott McNeil
Toby (1 eps)
Edwin Perez
Harry (1 eps)
Julia Rekaikyna
Amazonian Warrior (1 eps)
Mélania Solano
Natalia Guzman (1 eps)
Millan Tesfazgi
Scared Employee (1 eps)
Andrew Wheeler
Warden (1 eps)
Brent Zulyniak
Todd Sapphire (1 eps)
Roxy Wood
Yvette (1 eps)
Pierson Fodé
Angus / Gregory Bauer (1 eps)
Anna Van Hooft
Jennifer Bates (1 eps)
Doron Bell
Detective Rivers (1 eps)
Tarun Keram
Henry / Man in Tank (1 eps)
Teresa Laverty
Choking Man's Wife (1 eps)
John Michael
Kid #2 (1 eps)
Olivia Morandin
Child (1 eps)
Rico Simonini
Frank (1 eps)
Owen Walstrom
Choking Man (1 eps)
Pietra Castro
Kid #1 (1 eps)
Steph Song
VR Supergirl (1 eps)
Jina Anika
NPC-Police Officer (1 eps)
Neetu Garcha
NPC-Reporter (1 eps)
Marc Gaudet
NPC-Mac (1 eps)
Peter Hall
NPC-Abe Lincoln (1 eps)
Ryan Mutama
Cop (1 eps)
Simon Webb
Butler (1 eps)
Dustin Brooks
Stunt Prisoner #1 (1 eps)
Demord Dann
Prison Guard (1 eps)
Dave Ferguson
Bearded Prisoner (1 eps)
Everett Andres
Young Boy (1 eps)
Guy Christie
Passerby (1 eps)
Helen Slater
Eliza Danvers (1 eps)
Robert Baker
Otis Graves (1 eps)