Even "Once Upon A Time" has got "Frozen" fever. During the show's season finale, the ABC show introduced a new character.

At the end of the fairy-tale drama's two-hour finale, a new Disney character was revealed and it was none other than Queen Elsa of "Frozen." Elsa arrived in Storybrooke after Emma and Hook went on a time-traveling adventure and upon their return, accidentally brought in the icy queen.

Get ready... pic.twitter.com/kAo7v99yBi

— Once Upon A Time (@OnceABC) May 12, 2014

Showrunners Adam Horowitz and Eddy Kitsis confirmed to news outlet TVLine that the "Frozen" ice queen indeed arrived in Storybrooke at the end of Sunday's finale, but who will play the character permanently in the upcoming season has not yet been cast.

Time explains that since the character doesn't need an immediate appearance, a substitute was used for the finale footage and the process of selection for the character will take place later on.

It's not surprising how excited people are to see the incredibly new Disney face as the character isn't even a year old since the film was only released in cinemas November of 2013.

There are a number of potential Elsas in Hollywood. Some names put forward by TVLine include: Blake Lively, Laura Vandervoort, Maggie Grace or even Elizabeth Mitchell.

Who do you think would make a wonderful Queen Elsa? Sound off in the comments section below.

For those who haven't been following the show, get cracking before the show begins its 4th season because according to Hollywood Life, there might be more surprises. The use of the portal that took Elsa in opens up the possibility of more Disney characters coming in.

The outlet continues, "There's already been talk of getting Merida from Brave onto the show!"

See the clip below of Queen Elsa landing in OUAT's Storybrooke in the video below.