They starred together on House of Cards for five seasons until Kevin Spacey was dropped from the series after being accused of sexual misconduct.
But despite working together for four years, Robin Wright has revealed she knew nothing of Spacey's personal life.
In a preview for an interview with US breakfast show Today , Wright was asked whether there had ever been a "red flag" about Spacey's behaviour on the House of Cards set.
"Kevin and I knew each other between action and cut, and in between setups where we would giggle," she said.