Ladd used to attend protests in the 1960s, but he gave credit to this generation for being better organized and educated.
He showed up to show solidarity.
"I'd like to see an end to corporate and foreign lobbying," he said. "We've got no vote right now."
A social-media fueled plan to #OccupyWallStreet brought hundreds of protesters to Manhattan's financial center starting Saturday, Sept. 17.