Mister Mxyzptlk

Mister Mxyzptlk (pronounced miks-ill-plick) is a mischievous Imp from the Fifth Dimensional planet of Zrff, and a recurring villain in the Super Friends franchise. He is a practical trickster with reality-warping powers who enjoys making the lives of Superman and the Super Friends team difficult. He is voiced by Frank Welker.

Powers
As an imp, Mxyzptlk posses magical abilities that allow him to have the following:
 * Reality alteration: He can manipulate reality and the laws of the universe in such a way as to appear magical, though it does appear that there is a limit to his powers.
 * Flying: His magic also grants him the ability to fly.
 * Teleportation: He can disappear and reappear with or without the snap of his fingers.

Weakness
He only has one weakness. If he is tricked into saying his own name backwards Klytpzyxm (pronounced kilp-ill-skim), he returns back to the Fifth Dimension for 90 days. It also appears that once he leaves, any effects of his magic are removed.

TV series

 * Challenge of the Superfriends
 * The World's Greatest Superfriends
 * Superfriends
 * Superfriends: The Legendary Super Powers Show

Behind the scenes

 * Mister Mxyzptlk is a DC Comics character created by Superman creators Jerry Siegel and Joe Shuster. He debuted in Superman Vol. 1 #30 (September 1944).
 * In Challenge of the Superfriends and The World's Greatest Superfriends, Mxyzptlk had a voice that sounded very nasally. From the Superfriends shorts onward, his voice was toned down.

In popular culture

 * In the Superman: The Animated Series episode "Mxyzpixilated," Clark Kent mispronounces Mxyzptlk's name as miks-ill-plick (as in how he was addressed in Super Friends), whereas Mxyzptlk corrects him by saying it as mix-yez-spit-lick in this series.