Ophelia
Set just after the end of Act 5 scene 1, just before scene 2, everyone has left and then Hamlet re-enters because he hears a noise.
Appearing to Hamlet as a ghost, Ophelia tells him of her pregnancy, 'why wouldst thou be a breeder of sinners?'. This could show how the ghost of his father isn’t real, like by reinforcing the idea that Hamlet sees what he wants to see and the guilt of him telling Ophelia to ‘get thee to a nunnery’ and shunning her has forced him to imagine her ghost telling him that she did love him etc, and about their child. However, it could also be used to back up that the ghost of Hamlet’s father is real, like if there is more than one ghost it could show that Hamlet is not simply just hearing what he wants to hear and what he suspects, because he wouldn’t want to hear that the baby died when Ophelia did.
Rosencrantz and Guildenstern
Arguing amongst themselves in an empty room, in-between the end of act 2 and Act 3 scene 1.
Rosencrantz arguing that it is wrong to betray Hamlet by working with Claudius, because they both know that Hamlet doesn’t trust him and just because Claudius is King it doesn’t mean that it should get in the way of their friendship, and then Guildenstern arguing that if they ever want to get anywhere in life they are going to have to help the King because he is the one with the power. Used to try and show that although Rosencrantz and Guildenstern are never seen apart and are often seen as one character, they are both the two sides to a character that one actor would have to portray.
Polonius
Inner monologue from the point where he hides behind the curtain in Act 3 scene 4. It shows his reactions to Hamlet, and his realisation that the King killed his brother, ‘here is your husband like a mildewed ear, blasting his wholesome brother’ – as it says in the book, ear could be a reference to the actual killing of Hamlet’s father, and so Claudius comes to a half conclusion that Claudius may have been the one to kill Hamlet. It helps to fill out Polonius’ character as more than an old fool, and that when he is thinking he is actually quite sharp and he realises what is going on just before he dies, which adds a bit of extra frustration and intrigue for the audience because it’s like Hamlet came close to having someone who believes him and then he kills him.