Papa Karev is due to drop in to his son's life during tonight's Grey’s Anatomy episode — Season 10, Episode 4, "Puttin' on the Ritz" — as TV Guide confirms.

And his timing, predictably, is the worst.

As Justin Chambers tells the site, a visit from his estranged (and abusive and alcoholic) father is the last thing Alex wants as he starts to get serious with Jo (Camilla Luddington).

"The last time he saw his father, he was abusing his mom, and Alex had beat the crap out of him," Justin explains, saying that the unhappy family reunion will be "very interesting."

But Justin is optimistic that the elder Karev's arrival in Seattle might even bring Jo and Alex closer together. "I think [it's] going to make them strong because she comes from a similar background — not the best childhood. They're going to be able to lean on each other, and she's going to help him hopefully get through it."

However, as Camilla tells the outlet, Daddy Dearest may not be the only obstacle Jolex will face. She teases that Alex's platonic lady friends could be naysayers once they see that he and Jo are not some mere fling.

"There's always that interesting relationship that happens with the women who are the friends in your life and then the girlfriend who comes in and tries to integrate into somebody's life," Camilla muses, speculating that such a phenomenon is bound to create tension this season.

We're hoping that Jo and Alex make it, but — let's be real — Izzie, as far as we know, is still in neighbor city Tacoma.

Source: TV Guide

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!