text: Appearances In Hamlet, Rosencrantz and Guildenstern always appear as a pair, except in editions following the First Folio text, where Guildenstern enters four lines after Rosencrantz in Act IV, Scene 3.
  The two courtiers first appear in Act II, Scene 2, where they attempt to place themselves in the confidence of Prince Hamlet, their childhood friend. The smooth and courtly language they employ immediately establishes them as sycophants really serving as spies for the corrupt King Claudius, Hamlet's uncle, who usurped the throne and constantly attempts to check his nephew. Hamlet welcomes them as "excellent good friends", but, seeing through their guise, comments that they won't "deal justly" with him about their mission. Realising that he lacks allies except for Horatio, Hamlet gives the speech "What a piece of work is a man" to Rosencrantz and Guildenstern.
  In Act III, Hamlet seems to drop the pretense of friendship, coldly dismissing the two in Scene 2. Line 319 is perhaps his only use of the royal "we" in the play, although he may also be addressing the other person present on the stage, Horatio, with whom Hamlet first saw the ghost they are discussing. To his mother, he comments in Scene 4 that "I will trust [them] as I will adders fang'd."