A pair of big names are on their way back to Port Charles.

At least for one episode.

Anthony Geary (pictured, Luke) and Constance Towers (Helena) will return to General Hospital on Sept. 30. Their arrivals on the soap opera ought to answer the following question: Where has Luke been, and did Helena kidnap him?

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.