'Supernatural' Season 12 will see a new face in the coming times as actress Alicia Witt is all set to join the show. Witt made the announcement via Twitter and revealed that her character will have a link with Castiel.

Witt, who played Paula in 'The Walking Dead' announced on Twitter that she has been cast in The CW show and also said that her character, Lily Sunder will play an old enemy of Castiel's, reports TVLine. The 41-year-old actress also apologized for skipping the Walter Stalker Con- the 'Walking Dead' convention that features the stars of the zombie show.

Ever since she made the announcement, the social media has gone abuzz with speculations regarding her role and it is being reported that she will play an old enemy named Lily Sunder to the resident angel. Fans are assuming that she would be an angel or some other supernatural creature. Otherwise, how could she gain a foe like Castiel?

Meanwhile, it is being said that she would appear in 'Supernatural' Season 12 for one episode only, claims Parent Herald. However, going by the excitement with which Witt has made the announcement it seems unlikely that she will just have a guest appearance. Chances are high that she would be a recurring character.

Interestingly, this is not the first time that Witt will be sharing screen space with the cast of 'Supernatural.' She and Jensen Ackles (Dean Winchester) starred together in 90s sitcom 'Cybill.' Ackles reminded her as well of their past connection. Also, with her entry, Season 12 has gained the distinction of being the season with the most number of woman guest stars.

Mary (Samantha Smith) is back and so is Rowena (Ruth Connell) - Crowley's centuries-old mother. Lady Toni (Elizabeth Blackmore) is also starring in Season 12 as the enemy of Winchesters. In future, Sheriff Jody Mills (Kim Rhodes), Sheriff Donna (Briana Buckmaster), Claire Novak (Kathryn Newton) and Alex (Katherine Ramdeen) are also expected to come back.

It is worth mentioning here that showrunner Andrew Dabb had said earlier that Season 12 'Supernatural' will see more of Castiel's story.

"Supernatural" Season 12 airs every Thursday on The CW.