(In order of appearance)

JULIA PATTERSON: a magazine writer.
JACK BULLEN: a parlor Socialist.
LAURA HEGAN: Hegan's daughter.
ALLAN MONTAGUE: a lawyer.
JIM HEGAN: the traction king.
ANNIE ROBERTS: a girl of the slums.
ROBERT GRIMES: the boss.
ANDREWS: Hegan's secretary.
PARKER: a clerk.

ACT I

Julia Patterson's apartments in a model tenement on the lower East
Side.

ACT II

Library at "The Towers," Hegan's country place on Long Island, two
weeks later.

ACT III

Hegan's private office in Wall street, the next morning.