SPOILERS FOR “THE FINAL PROBLEM”
Sherlock‘s fourth season introduced us to – surprise surprise – Sherlock and Mycroft’s secret evil sister Eurus, as played by Sian Brooke. In “The Final Problem”, the elusive Ms Holmes run rings around her brothers and nearly murdered Mycroft and John. Still, come the end of the episode she was back under lock and key.
Sian Brooke, however, doesn’t think it will be that easy to keep her there and hopes to return as Eurus, should Sherlock get a fifth season.
“She feels forgiven in some form but I think there’s a darkness there that will never be fully quelled. I definitely think there’s more to explore with her… I hope that she wouldn’t become a softie. There’s a lot of fun to be had in playing somebody that cold and calculating.”
At the end of the finale, with the Holmes family surrounding her cell, it does look like a redemption might be on the cards for Eurus. Brooke doesn’t agree, though:
“I don’t think she can be redeemed. She thinks on a completely different level to everybody else, so no, I don’t think she can. But that’s the joy of that character.”
What did you think of Eurus? Would you like to see her return in Sherlock Series Five? Let us know in the comments!