In season 4, Arrested Development cast some notable names to play a younger Lucille and George Sr.: Kristen Wiig and Seth Rogen. During the second half of season 5, you’ll once again see a pair of familiar faces assume the role of the Bluth grand matriarch and patriarch: Cobie Smulders and Taran Killam.
The How I Met Your Mother alum and former Saturday Night Live cast member — and real-life spouses — will guest-star in multiple episodes of Netflix’s ultra-dysfunctional family comedy, EW has learned. The exact circumstances in which you’ll meet this version of younger Lucille and George Sr. — who are played in present day by Jessica Walter and Jeffrey Tambor — is being kept under wraps.
Season 5’s guest roster also includes Ben Stiller, Isla Fisher, Christine Taylor, Maria Bamford, Henry Winkler, Judy Greer, Kyle Mooney, Dermot Mulroney, and Frances Conroy. The final half of the season streams on Mar. 15, with Buster (Hale) set to stand trial for the murder of Lucille 2 (Liza Minnelli). (Source)