In a case of life imitating art, Kate Walsh, who recently split with husband Alex Young, is now single on screen as well after Addison broke up with Kevin Nelson last week.

We know Kevin is coming back in January in some capacity. In the meantime, the doctors at Oceanside aren’t exactly known for dry spells, and Addison is no exception.

Jay Harrington will be guest starring on Private Practice as Wyatt, a doctor from a competing practice. He says the sexual tension between them will escalate.

“[Their interaction] certainly starts off with sparks,” says Harrington. “He’s a bit of a misogynist and rubs her the wrong way. But as things go on and they work closer.”

But whatever happens, chances are Addison and Wyatt won’t have a long-term flame. Harrington, who had a 7-episode arc on Desperate Housewives in 2006, will be starring in ABC’s new half-hour comedy, Better Off Ted, with Portia de Rossi.

Until then, the Syracuse alumnus, who went to college with Taye Diggs, is enjoying his time on the set of Private Practice - and its lead star in particular.

“She’s a lot of fun to work with,” he says of Walsh.

“The tension between the two of us is fun.”

Think you've seen the last of Officer Kevin after this past week's episode of Private Practice? Think again, according to E! Online! The site's Kristin Dos Santos confirms as much in her spoiler Q&A this morning ...

Q: Please say that Wednesday's Private Practice, "Worlds Apart," was not David Sutcliffe's last show?!

A: Fear not. Network reps assure me that David Sutcliffe will be back in January!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.