Ready to see who brought the Nard Dog into this world?
7th Heaven patriarch Stephen Collins and Dee Wallace (E.T.) will guest-star on The Office as Andy's parents, Entertainment Weekly reports.
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"Doing 'The Office' this week," Collins tweeted
Tuesday. "Ridiculously fun & talented group, including @Rainnwilson
who I worked w/in his 1st job in '89 in the Park."
Collins most recently starred on No Ordinary Family
and recurred on Private Practice
. Wallace guest-starred on Detroit 1-8-7
and Law & Order: LA
last year.The Office
returns Thursday, Sept. 22 at 9/8c on NBC. Collins and Wallace's episode will air in October.