Gilbert Gottfried credited as playing...
Mr. Mxyzptlk
- Superman: Mr. Mxyzptlk!
- Stargirl: He's so cute! Whats a mixel...?
- Mr. Mxyzptlk: How could you not know me? You're breaking my heart.
- Batman: I thought you memorized all the Justice League dossiers I gave you.
- Stargirl: I've been cramming like crazy! I learned all about the atomic guy with the two personalities and backward talking lady magician, but when I read this guy's name on the file, I thought it was just a typo.
- Mr. Mxyzptlk: Hey, watch it, girlie. I'm the funny one here!
- Batman: Don't underestimate him. Mxyzptilk is an alien imp from the fifth dimension with powers beyond our understanding.and a pathological desire to create chaos.
- Mr. Mxyzptlk: That's mischief, Mr. Bats-in-the-Belfry!
- Stargirl: [to Gorilla Grodd] That was more fun than a barrel of monkeys, Grodd, but now you're done!
- Mr. Mxyzptlk: [suddenly appearing from the fifth dimension] Done? Are you kidding me?
- [Mr. Mxyzptlk has just switched around the identities of the remaining Justice Leaguers]
- Mr. Mxyzptlk: [laughing uproariously] Oh, this is rich! I could play this game for millenia, if my tuckus didn't get tired.
- Professor Martin Stein: Interesting. Inappropriate laughter can be a symptom of hypomania.
- Mr. Mxyzptlk: What? Who said that?
- Professor Martin Stein: I did - Dr. Martin Stein... one half of the hero Firestorm.
- Mr. Mxyzptlk: How did you get in my head? Get out of here!
- Professor Martin Stein: Ohh. You're an anthropophamaniac. That's fear of other people. I begin to understand you.
- Mr. Mxyzptlk: What are you? A ghost of my shrink? Stop psychoanalyzing me!
- Professor Martin Stein: You sound like a hellenologophobamaniac. That's one who fears complex scientific terminology.
- Mr. Mxyzptlk: Stop it! Stop it! Stop it! Stop it!
- Professor Martin Stein: Or perhaps you're a kltpzyxm!
- Mr. Mxyzptlk: Get this through your head! I'm not a hypomaniac, an anthropophamaniac, or an kltpzyxm. Oh, snap. I said it, didn't I.
- [by saying his name backwards, Mr. Mxyzptlk is instantly drawn back to the fifth dimension]