Barnardo: Who's there?
Francisco: I think I hear them.
Horatio: Friends to this ground.
enter ghost
Barnardo: In the same figure like the king that's dead.
exit ghost
Horatio: But in the gross and scope of mine opinion this bodes some strange eruption to our state.
exeunt
Claudius: How is it that the clouds still hang on you?
Hamlet: Not so, my lord. I am too much i' the sun.
Gertrude: Do not forever with thy vailed lids seek for thy noble farther in the dust.
Claudius: Tis unmanly grief
Hamlet: Oh, that this too, too sullied flesh would melt
Exeunt all but Hamlet
Hamlet: Methinks I see my father in my mind's eye.
Horatio: Thrice he walked by their eyes
Hamlet: Let it be tenable in your silence
Exeunt all but Hamlet
Hamlet: My father's spirit in arms. All is not well. I doubt some foul play.
Exit
Claudius- Claudius would be a horse because horses are the strongest animals on the farm and Claudius is the king.
Horatio: Horatio would be a sheep because he is a good reliable friend to Hamlet, just as sheep are cuddly and nice.
Gertrude- Gertrude is a baby duckling because baby ducklings just follow their mother, just like Gertrude does whatever Claudius says.
Hamlet- Hamlet is a rooster because roosters are unpredictable of when they are going to crow. Just like Hamlet's behavior is unpredictable