The 31-year-old Community star has signed on for a recurring role on the fourth season of Girls, set to air on HBO in 2015.
Dunham confirmed the news on Twitter Wednesday.
"It's true! The super-special @GillianJacobs has joined us for Girls season 4. We are pretty lucky," she tweeted.
According to TV Line, which first reported the story, Jacobs will play a recurring character named Mimi-Rose Howard. Her debut episode is titled "Mimi-Rose."
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