Who was the third person to go on the moon?

The third person to walk on the Moon was Charles "Charlie" Duke, an astronaut from the Apollo 16 mission. He followed Neil Armstrong and Buzz Aldrin, who were the first and second, respectively, during the Apollo 11 mission. Duke set foot on the lunar surface on April 21, 1972, and spent approximately 71 hours on the Moon, conducting experiments and exploring the lunar terrain.