Bartha ("The Hangover," Lend Me a Tenor) previously told the L.A. Times about his casting in the fall run of the play, which Academy Award nominee Eisenberg ("The Social Network, "The Squid and the Whale") also wrote.
Joining Bartha and Eisenberg will be Remy Auberjonois (The Country Girl Frost/Nixon) as Stuart and Camille Mana ("Smart People," "One on One"), who will make her Off-Broadway debut in the title role.
Bartha will co-star as Vinny, opposite Eisenberg as Edgar in the play that will be directed by Kip Fagan. Eisenberg's casting was previously announced during Rattlestick's season announcement.
Asuncion will begin previews Oct. 12 towards an Oct. 27 opening at the Cherry Lane Theatre. It is scheduled to run through Nov. 27.
Here's how Rattlestick describes the play: "Edgar and Vinny are not racist. In fact, Edgar maintains a blog condemning American imperialism and Vinny is three-quarters into a PhD in Black Studies. When a young Filipina woman named Asuncion becomes their new roommate, the pair have a perfect opportunity to demonstrate how open minded they truly are."
Memberships for the Rattlestick season are now on sale. An on-sale date for single tickets has not been announced.