7th Heaven's Stephen Collins Heading to The Office

BEVERLY HILLS, CA - AUGUST 01: Actor Stephen Collins attends the Disney ABC Television Group's Summer TCA party at the Beverly Hilton on August 1, 2010 in Beverly Hills, California. (Photo by David Livingston/Getty Images) Photo: David Livingston/2010 Getty Images

Stephen Collins will guest-star on an episode of The Office this season as Ed Helms's father, the "Nard Man" to Andy's "Nard Dog," and Dee Wallace will guest as Andy's mom. Collins got plenty of practice playing the parent of overly earnest, ultimately sweet but slightly strange offspring during his decade of dutiful service on 7th Heaven, and Wallace is seared into the collective pop-culture brain as the mom in E.T. They seem like a perfectly natural fit to play Andy's folks. But this raises a more pressing issue: When will the show address whether Phyllis is Erin's mother? [Inside TV/EW]