Puck is a character in a play called "A Midsummer Night's Dream". This play was written by William Shakespeare. In this play, Puck is a servant to the Fairy King, Oberon. Puck has some amazing abilities. For example, he can travel around the world in 40 minutes. In spite of his abilities, Puck makes a few mistakes in the play that create confusion for the other characters. For example, he puts a love potion into the wrong person's eyes. He also plays tricks. He puts a donkey's head on one character. 