He can take it from there:

“I was waiting for the C,” he said from his office on West 30th Street, where he works as a proofreader. “I’m an actor  shocker.”

He said almost everyone seems to be an aspiring actor nowadays, but in this case, it is a critical point to the story: Mr. Lindsey currently appears in an Off Broadway show called “Kasper Hauser,” in a role that requires him to repeatedly lift a character who cannot walk.

On Monday, as he waited for the train, about 2:30 p.m., he was thinking ahead to the reading he was heading to. “I’m kind of zoned out, and I saw this guy come too quickly to the edge,” he said. “He stopped and kind of reeled around. I felt bad, because I couldn’t get close enough to grab his coat. He fell, and immediately hit his head on the rail and passed out.”

Mr. Lindsey said he sensed a train was approaching, because the platform was crowded. “I dropped my bag and jumped down there. I tried to wake him up,” he said. “He probably had a massive concussion at that point. I jumped down there and he just wouldn’t wake up, and he was bleeding all over the place.”

Image Chad Lindsey, 33, near the subway tracks where he lifted an injured man to safety as a train approached on Monday. Then he went on his way. Credit... Fred R. Conrad/The New York Times

He looked back up at the people on the platform. “I yelled, ‘Contact the station agent and call the police!’ which I think is hilarious because I don’t think I ever said ‘station agent’ before in my life. What am I, on ‘24’?”