Answer: buzzaldrin

AnswerCrossword Clue
BUZZALDRINApollo 11 astronaut
BUZZALDRINSecond man off Apollo 11
BUZZALDRINSecond man to walk on the moon
BUZZALDRINSecond man on the moon
BUZZALDRINSecond man to set foot on the moon
BUZZALDRIN'60s moonwalker
BUZZALDRINSecond human on the moon