Another actress, Amber Valletta, also found herself taken into custody, along with the two stars, during the Fire Drill Friday demonstration for failing to obey a police officer.
Actresses Diane Lane and Piper Perabo have become the latest celebrities arrested in Washington, D.C. while taking part in Jane Fonda's weekly climate change protest.
Amber Valletta was also taken into custody for failing to obey a police officer during a Fire Drill Friday demonstration outside the Supreme Court building.
The trio was among the protesters hauled off in handcuffs.
Diane and Amber told TMZ they had never been arrested before.
Fonda, who was arrested at the first four Fire Drill Friday events, left the protest on Friday as police officers gathered, because she risks serious jail time if she's arrested again.
Sam Waterston, Ted Danson, Rosanna Arquette, and Catherine Keener have also been arrested at past Fire Drill Friday protests.