Season 1

Season One is the first season of CBS's Twice Upon a Time. It was announced on January 9, 2019.

Season One premiered on October 6, 2019 with "Pilot", and ended with "Believe" on May 10, 2020.

Starring

 * Andrew J. West as Prince Leopold "Leo" Jones/Leo Burns
 * Christa B. Allen as Alaina Booth/Alaina Quentin
 * Jack Huston as Adam/Adam Trade
 * Giles Matthey as Gideon/Hayden Aesop
 * Alison Fernandez as Lucy Mills/Lucy Trade
 * Serinda Swan as Robyn/Raina Hood
 * Jason Sudeikis as Henry Mills/Tyler Nixon
 * Lana Parilla as Regina Mills/Roni Seller
 * Joseph Morgan as Prince Neal Nolan/Raymond James

Guest Starring

 * Eion Bailey as August Booth/Axl Oak
 * Jennifer Morrison as Emma Swan/Anna Digger
 * Colin O'Donoghue as Hook/Mike Jones
 * Emilie de Ravin as Belle/Lacey Gold
 * Amber Tamblyn as Violet Mills/Avery Morgan
 * Ginnifer Goodwin as Snow White/Cassidy Smiles
 * Josh Dallas as Prince Charming/Edwin Andrews
 * Keegan Connor-Tracey as Blue Fairy/Wendy Dale
 * Sara Tomko as Tiger Lily/Reverend Mother
 * Meghan Ory as Red Riding Hood/Scarlett James
 * Deniz Akdeniz as Aladdin/Ryan Carter
 * Karen David as Jasmine/Zoe Carter


 * Nick Eversman as Liam Jones/Roger Jones
 * Rose McIver as Tinker Bell/Sally Xavier
 * Teri Reeves as Dorothy Gale/Felicity James
 * David Anders as Victor Frankenstein/Hunter Shelley
 * Richard Madden as Prince Daniel/Daniel Quentin
 * Olivia Holt as Princess Eva Jones/Eva Jones
 * Erica Durance as Genevieve
 * Chance Crawford as Theo/Theo Kaven
 * Claire Holt as Kyla/Patricia Westbrooke
 * Mekia Cox as Tiana/Tina Maldonia
 * Boris Kodjoe as Prince Naveen/Stanley Maldonia
 * Jenny Slate as Gazelle Camellia/Shannon Hills

Trivia

 * Andrew J. West and Jack Huston are the only starring cast members to appear in every episode.