The fan favorite stopped by BuzzFeed LA to talk about what goes on behind the scenes of the HBO hit!
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1. The best part of working on Girls for Rannells, perhaps unsurprisingly, is working with "those girls," the four main cast members: Lena Dunham (Hannah Horvath), Allison Williams (Marnie Michaels), Jemima Kirke (Jessa Johansson), and Zosia Mamet (Shoshanna Shapiro).
2. The worst part? Finding out you're not in an episode. "Sometimes we'll do a table read and [it'll be like], 'Oh, I'm not in this one. Interesting.' I love working on it, I want to be in it all the time," Rannells said.
3. The cast doesn't really fight, according to Rannells. "It's nice because there's an ease in the group. There's still a level of professionalism," he said. "That group is so respectful, I don't think it will ever deteriorate into screaming matches."
4. Rannells describes working with Dunham as "incredible" — she serves as a writer, executive producer, and occasional director in addition to starring on the show. "Looking back on the past couple seasons, we'd be in between takes and she'd be writing that book, writing Not That Kind of Girl, which is crazy to me, surrounded by all these people running around," he said.
5. Of the four main cast members, Rannells said Williams is closest to her character. "I guess a 'version' of Allison and Marnie sort of exists, I guess," he said. "But surely not that uptight. She's not that type-A."
6. And the most different from her character? That would be... Lena Dunham! "Hannah is such a fucking mess and that couldn't be farther from who Lena Dunham is," Rannels said.
7. As for Rannells himself, he sees himself as a combination of Hannah and Marnie.
Macey J Foronda / BuzzFeed
8. The cast has pretty much all seen each other naked thanks to a skinny-dipping scene in Season 3's episode "Beach House." "We all got an eyeful that day," Rannells said. "But everyone is respectful of the boundaries."
9. "But everyone of course has seen Lena naked," Rannells said. "And I feel like Jemima always seems naked, even when she's dressed."
10. If he had to dole out cast superlatives, Kirke would be the class clown.
11. Dunham would win "most dateable," Rannells said.
12. Williams would win "best dressed."
13. Dunham would also win "loudest," Rannells said. "Lena has got a really hilarious laugh, that's a really infectious laugh," he said. "It's a great laugh."
14. And Kirke would win again for "best stories," he said. "I feel like Jemima always has really hilarious things to say about life in general," Rannells said.
15. Rannells' dream guest stars for the show? Jon Hamm or John Slattery from Mad Men or Cate Blanchett. "She could do literally whatever she wants," he said.
16. And if Rannells could have any historical figure on Girls, it would be former first lady of the Philippines, Imelda Marcos. "A horrible, horrible, selfish dictator lady would fit in well with the group," he said.
