Hint: listen very closely in those subway scenes.

Warning: This article contains spoilers about season 2 ofRussian Doll.

As viewers watchRussian Dollseason 2, they might notice a familiar name in the credits.

ComedianRosie O’Donnellis credited throughout the second season as a guest star, but she never actually appears on screen.

So, what exactly is her role?

“She’s the subway announcer.

She’s the, ‘Next stop, this is Astor Place.

Next stop, 14th street,'” series co-creator and starNatasha Lyonnetells EW for ourlatest cover story.

For Lyonne, it was important that whoever did the voice work sound like a real New Yorker.

“It was very generous of [O’Donnell].

I just texted her, because we knew we wanted a real New York accent.

Who’s doing this part?’

It was very moving, because I personally had never felt so exposed,” she says.

All seven episodes ofRussian Dollseason 2 are available on Netflix now.