'Arrested Development' Enlists Conan O'Brien, Andy Richter (Video)

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Conan O'Brien and Andy Richter

Netflix's Arrested Development continues to add to its already impressive cast roster.

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During a visit to TBS' Conan, Arrested co-star Will Arnett revealed that both Conan O'Brien and Andy Richter are joining the cast of the Netflix revival.

"I don't want to give away too much … but there are a few people on this stage tonight who are a part of it," Arnett says with a smirk and glance at both O'Brien and Richter.

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"A few means more than two," Richter replied, with Arnett clarifying his remarks: "And Less than four. … It's us," he replied with a laugh.

Netflix picked up the critical darling for a fourth season in November after a seven-year hiatus, with the 10-episode run expected to debut in the spring on the streaming site.

So far, the series has lined up an impressive roster of new and returning stars that includes Mad Men's John Slattery, Henry Winkler, Carl Weathers and Isla Fisher, among others.

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"We're having such a good time being back together. … It's been seven years and we all just picked up where we left off," Arnett says in the interview below.

It's unclear what role O'Brien and Richter will have, but it's likely the latter will reprise his role as quintuplets Andy, Donnie, Chareth, Rocky and Emmet on the former Fox series.  

Check out the video below and hit the comments with your thoughts on who O'Brien should play.

Email: Lesley.Goldberg@thr.com; Twitter: @Snoodit