Who else went to the moon with Neil Armstrong and Buzz Aldrin?

Michael Collins was the Apollo 11 Command Module pilot and stayed in orbit when Armstrong and Aldrin went down to explore the lunar surface on July 20, 1969. Each of the six Apollo landing missions (11, 12, 14, 15, 16, and 17) had one astronaut staying with the main craft and two astronauts taking the LEM (Lunar Excursion Module) to the surface and back.