As things heat up (literally!) this summer on General Hospital, here's a quick look at who will be showing up on the daytime drama next month...

• Arizona Diamondbacks left fielder Conor Jackson will portray Michael's physical therapist on the Wednesday, June 3.

• Lexi Ainsworth will debut as Kristina Corinthos on Thursday, June 4.

• Also on June 4: Billy Dee Williams reprises the role of Toussaint DuBois; and Constance Towers (pictured) brings Helena Cassadine back to Port Charles.

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