When Rookie Blue returns to ABC on June 23, Camille Sullivan will make an immediate impression.

The actress comes on board as Detective Jo Rosati (pictured), clashes with Andy and has a connection with Eric Johnson's Luke: she's his ex-girlfriend.

"She makes Andy's life hell," Missy Peregrym tells E! News. "[Rasati] wants Luke. She regrets the decision that they broke up. It's really complicated this year with relationships."

As for the main relationship on the show, the one many viewers hope gets taken to a new, naked level this summer, the actress had the following to say about Andy and Sam:

"Naturally, we really care about one another. Because he's not my training officer, it's more available to happen this year."

Consider yourselves properly teases, Rookie Blue fans! TV Fanatic will cover every episode of this show in-depth this summer, via recaps, reviews, quotes and more!

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