Homeland star Claire Danes has confirmed that the espionage thriller will end after its eighth season. 

Danes revealed her time as CIA operative Carrie Mathison was coming to an end when she appeared as a guest on Howard Stern's Sirius XM radio show in the US on Wednesday.

When asked by Stern about the rumour that season eight would be the last, Danes replied: "Yeah, that's it."

Danes said she was "conflicted" about saying goodbye to the show but added: "She's a lot, this Carrie-freakin' Mathison character."

"It's a workout," she admitted. "I'll be ready for a reprieve from that."

Danes also revealed to Stern that she is pregnant with her second baby, joking that she's "seriously preggo".

"I'm pregnant," she told Stern. "I'm seriously preggo. I'm deep into my second trimester."

When Stern said she looked "so thin", she responded: "I'm seated."

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The 39-year-old actress and her husband Hugh Dancy are already parents to five-year-old son Cyrus. 

When asked about the gender of their second child, she said: "I'm going to keep that to myself."

The actors have been married since 2009.

Danes was pregnant with her first child while shooting the second season of Homeland.

Actors Claire Danes and Hugh Dancy expecting second child

Danes has won two Golden Globes and two Emmys for her work on Homeland, with the final season expected on screens in 2019.

Season seven of Homeland continues on RTÉ2 on Thursday, April 19 at 9:30pm.