Serious, worried, cynical, regretful, scared
I'm sorry for the lack of details. I need to go, now.
Answer: Neil Armstrong is the person who is narrated " One small Step"
Neil Armstrong said "That's one small step for man, one giant leap for mankind" when stepping his first step on the moon.
Explanation:
Possibly to emphasize it, or to mark it as being sarcastic. You choose.