Marvel Moves up Loki's Release Date, Releases New Video Loki video today that reveals the series will debut on June 9th, two days earlier than its previously announced June 11th debut. Thereafter, new episodes will premiere on Wednesdays, making Marvel's new television day the same as its new comics day. You can see the video for yourself below. The new streaming series sees Tom Hiddleston reprising Thor's brother, the Asgardian god of mischief. This Loki is the version from the alternate timeline created by the Avengers' Infinity Stones heist in Avengers: Endgame, who used the Tesseract to escape custody. Michael Waldron created the series and serves as head writer. Kate Herron directs the show's six-episode first season. Alongside Hiddleston, the series stars Owen Wilson as Time Variance Authority agent Mobius M. Mobius. The cast also includes Gugu Mbatha-Raw, Sophia Di Martino, Wunmi Mosaku, Richard E. Grant, Sasha Lane, and Erika Coleman.