This author created the character of Easy, who appears speaking English in a gibberish adaptation of Hamlet and reappears speaking gibberish in an English version of Macbeth performed in front of the secret police. This author parodied The Mousetrap in a play about the theater critics Moon and Birdboot, The Real Inspector Hound. In an absurdist play by this man, a troupe of tragedians prepare to stage The Murder of Gonzago in Denmark. For 10 points what playwright wrote 
This author created the character of Easy, who appears speaking English in a gibberish adaptation of Hamlet and reappears speaking gibberish in an English version of Macbeth performed in front of the secret police. This author parodied The Mousetrap in a play about the theater critics Moon and Birdboot, The Real Inspector Hound. In an absurdist play by this man, a troupe of tragedians prepare to stage The Murder of Gonzago in Denmark. For 10 points what playwright wrote about two of Hamlet's friends in Rosencrantz and Guildenstern are Dead?