Vladimir
The more intellectual of the two main characters. He remembers more, thinks more, and tries harder to make sense of their situation. He is the one who insists they must wait for Godot and who tries to get information from the boy. His need to find meaning drives much of the dialogue.
Estragon
Vladimir's companion. He forgets almost everything from one day to the next, suffers from physical discomfort, and is more likely to want to leave or give up. He grounds the play in the body while Vladimir operates more in the mind. Together they form a single, unstable unit.
Pozzo
A wealthy, domineering man who arrives in Act One leading Lucky on a rope. He performs confidence and authority. By Act Two he is blind, helpless, and has no memory of his previous visit. His collapse shows how quickly power dissolves.
Lucky
Pozzo's servant, kept on a rope and ordered around like an animal. In Act One he delivers a long, fractured speech when told to think, showing a mind that once had real capacity. In Act Two he is completely mute. His deterioration is the most visible sign of decay in the play.
The Boy
A young messenger who appears at the end of each act to say Godot will not come today but will come tomorrow. He does not remember delivering this message before. He represents the false promise that keeps Vladimir and Estragon in place.