Conan O'Brien and Andy Richter are joining the long list of big name guest stars on the upcoming Netflix resurrection of "Arrested Development."

"Arrested Development" star Will Arnett let the news slip during an interview on "Conan" this week, but said little more about how the TBS late night star and his sidekick would be appealing.

Richter previously appeared on the then-FOX comedy as a set of identical quintuplets, but it's unclear if he'll be reprising those roles.

The new season of "Arrested Development," featuring a minimum of 10 episodes (but possibly as many as 13) will premiere on Netflix next spring.

Previously announced guest stars include John Slattery, Isla Fisher and the return of Carl Weathers.