Arrested Development Adds Isla Fisher, Terry Crews -- But Who Are They Playing?

Isla Fisher Arrested DevelopmentSince last we saw them, it appears that Arrested Development‘s Bluths have made some new friends.

Isla Fisher (Wedding Crashers) and Terry Crews (Everybody Hates Chris) will appear in the cult comedy’s upcoming Season 4, TVLine has confirmed.

Both actors have already begun shooting their guest spots, per Zap2It, which broke the news. No details about their characters are available yet.

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The pair join Mad Men’s John Slattery – another Arrested newbie – as well as the show’s original cast and some special pals for the sitcom’s Season 4, which will be released in its at-least-10-episode entirety on Netflix sometime in 2013.

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Crews recently played bodyguard Lonny on The Newsroom and competed in NBC’s military-themed reality show, Stars Earn Stripes. Fisher, who appeared on Bored to Death last year, will play Myrtle in Baz Luhrman’s big screen version of The Great Gatsby when it’s released next year.