Hard to believe in just over a week's time we'll be binge-watching Netflix's 'Arrested Development' season 4, 15 full episodes of as-yet-unrevealed surprises and more cameos than we can count. The latest round of photos from the revived season gives us our first look at 'Mad Men's' John Slattery, as well as a bit of friendly nepotism and a previously hidden guest star, sot get the latest on 'Arrested Development's' return inside!

We've just 9 days until 'Arrested Development's' glorious return, and once again it becomes apparent series creator Mitch Hurwitz has left plenty of hidden surprises to be discovered among the 15 new episodes. Among the latest round of photos from Time Magazine, we see 'Mad Men' star John Slattery (Roger Sterling) looking anything like his debonair self, and apparently portraying George Sr.'s doctor.

Elsewhere, it looks as if Gob has finally gotten his bee business (or at least hazardous materials) off the ground with a little help from narrator Ron Howard's brother Clint, while former (and future?) '24' star Mary Lynn Rajskub also has a role alongside Slattery. Ron Howard appears as well, though likely as himself, given the cameo in the finale.

‘Arrested Development’ season 4 also features a 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,’ Terry Crews and Isla Fisher, as well as returning series players Ed Helms, Alan Tudyk, Martin Mull, Ben Stiller, James Lipton, Carl Weathers, Jeff Garlin, Liza Minnelli, Judy Greer, Henry Winkler and Scott Baio.

Check out the latest photos below, and tell us in the comments what you're most looking forward to seeing about 'Arrested Development' season 4, premiering May 26 on Netflix!

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