WATCH: Sneak Peek of all-new AMERICAN DAD - "Old Stan in the Mountain"

Patrick Stewart (“X-Men”) Guest-Voices

AMERICAN DAD: Stan has a hex placed on him that turns him into a frail, old man in the all-new "Old Stan in the Mountain" episode of AMERICAN DAD airing Sunday, Feb. 19 (9:30-10:00 PM) on FOX 50. AMERICAN DAD ™ and © 2012 TCFFC ALL RIGHTS RESERVED.

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By FOX50.com

Story Created: Feb 16, 2012 at 4:31 PM EDT

Story Updated: Feb 19, 2012 at 6:04 PM EDT

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When Stan is overly enthusiastic about his hatred for old people, a hex is placed on him that turns him into a frail, old man. Meanwhile, Roger takes Francine on a road trip to a dance competition, but she soon finds out it’s not what she bargained for in the all-new “Old Stan in the Mountain” episode of AMERICAN DAD airing Sunday, Feb. 19 (9:30-10:00 PM) on FOX (DAD-614) (TV-14 D, L, V)

Voice Cast: Seth MacFarlane as Stan Smith and Roger the Alien; Wendy Schaal as Francine Smith; Rachael MacFarlane as Hayley and Old Woman, Scott Grimes as Steve; Dee Bradley Baker as Klaus and Doctor.

Guest Voice Cast: Patrick Stewart as Bullock.