Game of Thrones star Kate Dickie has low-key joined Marvel's action-adventure series Loki to play a new villain in Season 2.

According to Deadline, Dickie, who played Lady Lysa Arryn on Game of Thrones from 2011 to 2014, secretly joined the cast for Loki's upcoming season. While casting details for the superhero series have been kept quiet, the report states the Scottish actor will play an antagonist.

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Dickie joins a Season 2 cast that includes lead actor Tom Hiddleston, who plays the titular character in Loki. The series also features Owen Wilson as Mobius M. Mobius, Tara Strong as Miss Minutes, Gugu Martha-Raw as Ravonna Renslayer, Sophia Di Martino as fan-favorite Loki variant Sylvie, and Eugene Cordero as Casey. Moon Knight directing duo Justin Benson and Aaron Moorhead helmed Season 2 while Season 1 co-writer Eric Martin returned to pen all six new episodes.

Kate Dickie's Game of Thrones Character Wasn't a Fan Favorite

In Game of Thrones, Dickie played the daughter of Hoster Tully, marrying Jon Arryn and becoming the Lady Regent of the Vale after Jon's death. Lysa Arryn was a supporting antagonist on the famed HBO series, known for her paranoia and violent tendencies.

Despite her unlikeable streak on Game of Thrones, Dickie has a distinguished acting resume spanning nearly 30 years. She previously appeared in TV series and miniseries such as The Pillars of the Earth, Midwinter of the Spirit, Inside Man, and Peaky Blinders. She also featured in films such as Star Wars: Episode VIII: The Last Jedi, The Northman, The Witch, and The Green Knight. Dickie has won multiple Best Actress awards in Britain for her work, particularly in Red Road and Couple in a Hole.

RELATED: Loki Star Promoted to Series Regular for Season 2

Production on Loki Season 2 was recently completed with its episodes expected to air in mid-2023, though an official release date has yet to be announced. Along with Dickie's welcome addition to the cast for its upcoming season, there were rumors that The Witcher and Enola Holmes 2 star Henry Cavill would play Hyperion in the series. Cavill ultimately debunked the speculation, saying it would be tricky for him to appear on the show. Cavill's return as Superman in Black Adam didn't necessarily close the door on a potential Marvel role, however, as many actors have appeared in both the DC Universe and Marvel Cinematic Universe -- Zachary Levi, Michael Keaton and Idris Elba, to name a few.

The second season of Loki will feature six episodes. Fans can stream all Season 1 episodes via Disney+.

Source: Deadline