On this week's episode of The Ghost Whisperer, Chad Lowe guest stars.

What role does he play? And who else should viewers expect to see before the year is through? TV Guide Magazine asked those questions of producer Ian Sander...

On Lowe: "He plays a guy named Nathan, a high profile client of Jamie Kennedy’s psychologist character, Eli. He is a software mogul with an obsessive compulsive disorder and paranoia."

On Aiden in the episode: "Aidan is an empath, which means he is able to empathize with some of these ghosts. Melinda is able to have visions through him. And this episode accelerates that dynamic more than any other."

On future guest stars: "On November 13, we have Ally McBeal’s Greg Germann and Entourage’s Perrey Reeves playing a warring husband and wife real estate couple in a really fun War of the Roses-themed episode."

For a look at larger images from tomorrow night's episode, click on the pics below. Then, follow this article's jump for the official CBS promo for it.

[video url="http://www.tvfanatic.com/videos/cause-for-alarm-promo/" title="Cause for Alarm Promo"] [/video]

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