Just yesterday we learned that 'Arrested Development' season 4 had yet to reveal all of its guest stars, even as we approach the May 26 debut of all 15 Netflix episodes, but it seems another major name has slipped out of the bag. 'The Office' and 'The Hangover' star Ed Helms will put in an appearance for 'Arrested Development's' return, and you don't have to wait to see it!

Merciful Zeus, will the 'Arrested Development' season 4 guest star list never end? Less than two weeks to go until the premiere, and series star Portia de Rossi revealed to Jimmy Fallon that 'The Office's' Ed Helms will appear within the Netflix revival, reprising his single-episode role as realtor James Carr. Helms' appearance was revealed with a new clip from the upcoming episodes, seen below.

Helms joins the existing ‘Arrested Development’ season 4 guest roster of ‘Cougar Town‘s' Busy Philipps and comedian Natasha Leggero, ‘The Office‘s’ John Krasinksi, Kristen Wiig and Seth Rogen, ‘Up All Night’ star Chris Diamantopoulos, Conan O’Brien and Andy Richter, ‘Parks and Recreation‘s’ Ben Schwartz, all three stars of Comedy Central’s ‘Workaholics,’ ‘Mad Men’s’ John Slattery, Terry Crews and Isla Fisher, as well as returning series players Alan Tudyk, Martin Mull, Ben Stiller, James Lipton, Carl Weathers, Jeff Garlin, Liza Minnelli, Judy Greer, Henry Winkler and Scott Baio.

What say you? Will more 'Arrested Development' season 4 guest stars arrive before the May 26 premiere? Watch the new clip below (beginning at 1:25), and tell us what you most want to see from the 'Arrested Development' revival in the comments!

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