'Homeland' star Nazanin Boniadi has said that season four - the first without Damian Lewis - is "very much a reboot" of the series.
Lewis' character - tragic ex-marine Nicholas Brody - was executed by Iranian authorities in season three's finale, 'The Star', reported Digital Spy.
"Alex Gansa (series showrunner) and the writers are masterminds at reinvention," Boniadi - who plays CIA operative Fara, said.
"The fact that they kept Brody alive for three seasons and still kept it interesting is testament to that, because I think Alex has gone on the record and said that they had plans to kill Brody early on and they couldn't, because he was just so good.
"But there's only so much do with that character - because of the nature of the character - and I think everybody realised it was time to move on from that storyline. No character but Carrie (Claire Danes) is safe on this show," she added.
