Bit of help with my character in Hamlet?

I got a part in a school play as 'servant'. We got homework to find a picture of the character that we are playing and stick it on the front of our scripts. But when i looked on Wikipedia i found the only servant character in the play, Reynaldo, and looked him up. It appears that the only line he says is "Yes, my lord" while the only line in the play i say is "Seafaring men, sir. They say they have letters". Have i got the right character or??? I can't remember what scene or act it is but i know that it is at the beginning of an act. Help? Who exactly AM I??????