According to
ComicBook.com, iconic Superman villain Mr. Mxyzptlk will make his presence felt in
Supergirl next year. No one has been cast in the role as of yet, but the site ays that he'll appear in two episodes. A cartoonish character for many years, he was turned into a more serious threat for stories like
Countdown to Final Crisis and Grant Morrison's run on
Action Comics at the start of The New 52.
Mr. Mxyzptlk is a fifth-dimensional imp with the power to do almost anything he can imagine. He could transform Superman into ashes or erase him from existence, but for him, there's no real fun in that.
Considering the fact that Mxyzptlk once pitted Supergirl against The Flash, he would be the perfect foe for those two heroes in the upcoming crossover which will see Melissa Benoist and Grant Gustin make good use of their
Glee background with a musical episode. We'll have to wait and see, but it's going to be interesting to see how Supergirl ends up handling this villain's next small screen appearance.