Characters:

• The Speaker (Poetic Persona): The speaker is the narrator of the poem. He is thoughtful and questions why people build walls. He believes walls separate hearts, not protect them. He is friendly but curious. He wants understanding, not division. 
• The Neighbor: The neighbor lives next to the speaker. He is simple and traditional. He believes in his father’s saying, “Good fences make good neighbours.” He never questions old customs. He just repairs the wall every spring.