Former Homeland and Firefly star Morena Baccarin is returning to The Mentalist.

The Brazilian actress - Emmy-nominated for her performances in Homeland as Jessica Brody - is to reprise her role as the manipulative Erica Flynn in season seven.

Her appearance in episode three will see Erica Flynn partnering with Patrick Jane (Simon Baker) to take down a weapons dealer in Beirut.

Flynn agrees to aid Jane on his CIA mission in exchange for a pardon on murder charges, although she also seeks an ulterior motive for getting involved in the operation.

Baccarin has appeared in The Mentalist in two previous episodes, and has since had regular roles in Homeland and The Good Wife.

The actress also recently signed up for her own medical drama pilot.

The Mentalist will return to RTÉ One in 2015.